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Top 25 User Generated Content Sites | September 2007 (EBIZMBA.COM) Here are the 25 Largest User Generated Content Websites ranked by a combination of Inbound Links, Google Page Rank, Alexa Rank, and U.S. traffic data from Compete and Quantcast. Although no traffic metrics are completely accurate we do believe the data below to be useful for gauging relative audience size. eBusiness News | Top 25 UGC Sites | Posted 9/16/2007 | eBizMBA 1 | myspace.com
92,285,806 - Inbound Links | 68,285,849 - Compete Monthly Visitors | 53,000,000 - Quantcast Monthly Visitors |
2 | Wikipedia.org
75,539,411 - Inbound Links | 41,422,790 - Compete Monthly Visitors | 43,000,000 - Quantcast Monthly Visitors |
3 | YouTube.com
52,375,050 - Inbound Links | 23,825,526 - Compete Monthly Visitors | 32,000,000 - Quantcast Monthly Visitors |
4 | facebook.com
18,261,829 - Inbound Links | 22,541,770 - Compete Monthly Visitors | 25,000,000 - Quantcast Monthly Visitors |
5 | photobucket.com
144,789,477 - Inbound Links | 25,548,801 - Compete Monthly Visitors | 14,000,000 - Quantcast Monthly Visitors | 6 | craigslist.org
2,218,413 - Inbound Links | 23,982,542 - Compete Monthly Visitors | 15,000,000 - Quantcast Monthly Visitors | 7 | flickr.com
51,779,871 - Inbound Links | 23,643,614 - Compete Monthly Visitors | 9,700,000 - Quantcast Monthly Visitors | 8 | IMDB.com
22,521,797 - Inbound Links | 17,703,766 - Compete Monthly Visitors | 11,000,000 - Quantcast Monthly Visitors | 9 | digg.com
118,353,522 - Inbound Links | 16,964,445 - Compete Monthly Visitors | 8,700,000 - Quantcast Monthly Visitors | 10 | WordPress.com
40,127,598 - Inbound Links | 6,373,166 - Compete Monthly Visitors | 16,040,392 - Quantcast Monthly Visitors | 11 | topix.com
12,338,857 - Inbound Links | 4,496,803 - Compete Monthly Visitors | NA - Quantcast Monthly Visitors | 12 | Netscape.com
21,622,171 - Inbound Links | 4,855,232 - Compete Monthly Visitors | 8,282,805 - Quantcast Monthly Visitors | 13 | xanga.com
8,229,423 - Inbound Links | 3,494,603 - Compete Monthly Visitors | 6,627,359 - Quantcast Monthly Visitors | 14 | TypePad.com
39,468,446 - Inbound Links | 6,431,095 - Compete Monthly Visitors | 4,400,000 - Quantcast Monthly Visitors | 15 | cafepress.com
39,894,526 - Inbound Links | 3,423,757 - Compete Monthly Visitors | 3,400,000 - Quantcast Monthly Visitors | 16 | feedburner.com
100,244,672 - Inbound Links | 5,478,321 - Compete Monthly Visitors | 592,976 - Quantcast Monthly Visitors | 17 | LiveJournal.com
33,451,748 - Inbound Links | 3,660,684 - Compete Monthly Visitors | 1,900,000 - Quantcast Monthly Visitors | 18 | Technorati.com
75,264,240 - Inbound Links | 3,231,709 - Compete Monthly Visitors | 1,400,000 - Quantcast Monthly Visitors | 19 | linkedin.com
2,850,378 - Inbound Links | 2,390,529 - Compete Monthly Visitors | 1,300,000 - Quantcast Monthly Visitors | 20 | del.icio.us
171,905,738 - Inbound Links | 1,699,128 - Compete Monthly Visitors | 1,300,000 - Quantcast Monthly Visitors | 21 | dailymotion.com
3,376,702 - Inbound Links | 1,962,777 - Compete Monthly Visitors | 853,305 - Quantcast Monthly Visitors | 22 | friendster.com
3,275,127 - Inbound Links | 1,521,905 - Compete Monthly Visitors | 808,926 - Quantcast Monthly Visitors | 23 | StumbleUpon.com
19,083,910 - Inbound Links | 1,313,586 - Compete Monthly Visitors | 695,239 - Quantcast Monthly Visitors | 24 | last.fm
14,448,992 - Inbound Links | 1,150,875 - Compete Monthly Visitors | 713,976 - Quantcast Monthly Visitors | 25 | MyBlogLog.com
1,746,490 - Inbound Links | 1,972,847 - Compete Monthly Visitors | 84,922 - Quantcast Monthly Visitors |
Top 40 RSS sites (Top 20 excerpted here)==== "RSS is the acronym used to describe the de facto standard for the syndication of Web content. A Web site that wants to allow other sites to publish some of its content creates an RSS document and registers the document with an RSS publisher. A user that can read RSS-distributed content can use the content on a different site. Syndicated content can include data such as news feeds, events listings, news stories, headlines, project updates, excerpts from discussion forums or even corporate information." ==== FeedBurner is a popular RSS feed manager, with over 600.000 feeds in their roster. One of the advantages it offers is tracking the statistics for your RSS feed usage. Publishers can also choose to go public with this data, and many of them are displaying the number of their RSS subscribers, according to FeedBurner, on their site. Bear in mind that this list is obtained in completely unscientific ways, as I simply checked out the number of RSS subscribers for blogs I know to be very popular (over 500 of them) and who have their RSS subscriber number public, and created the list from those numbers. I might have (and probably did) miss some - if you have a correction, please let me know so I can add it to the list. In any case, this list is not meant to be a definitive metric of any kind. It’s just here to tickle curiosity. So, here it is, the top 40 sites according to the number of their RSS subscriptions, as measured by FeedBurner: 
1. BoingBoing
2. TechCrunch
3. Simply Recipes
4. Interesting Thing of the Day
5. 43Folders
6. Mashable
7. DumbLittleMan
8. 37signals
9. John Battelle’s Searchblog
10. CrunchGear
11. Read/Write Web
12. Coding Horror
13. How to Change the World by Guy Kawasaki
14. MicroPersuasion
15. Duct Tape Marketing
16. DiggNation
17. GoogleOperatingSystem
18. LifeHack
19. TreeHugger
20. FrenchMaidTV
10 Largest Social Bookmarking Sites EBIZMBA.COMHere are the 10 Largest Social Bookmarking Sites ranked by a combination of Inbound Links, Google Page Rank, Alexa Rank, and U.S. traffic data from Compete and Quantcast. Although no traffic metrics are completely accurate we do believe the data below to be useful for gauging relative audience size. Data is excerpted from: 30 Largest Social Bookmarking Sites | Updated 8/14/2007 | eBizMBA 1 | digg.com
117,796,083 - Inbound Links | 16,964,445 - Compete Monthly Visitors | 8,700,000 - Quantcast Monthly Visitors |
2 | Netscape.com
21,581,600 - Inbound Links | 4,855,232 - Compete Monthly Visitors | 8,180,176 - Quantcast Monthly Visitors | 3 | Technorati.com
75,306,437 - Inbound Links | 3,231,709 - Compete Monthly Visitors | 1,400,000 - Quantcast Monthly Visitors |
4 | del.icio.us
171,593,051 - Inbound Links | 1,699,128 - Compete Monthly Visitors | 1,300,000 - Quantcast Monthly Visitors | 5| StumbleUpon.com
19,050,177 - Inbound Links | 1,313,586 - Compete Monthly Visitors | 695,239 - Quantcast Monthly Visitors | 6| reddit.com
45,307,577 - Inbound Links | 1,226,467 - Compete Monthly Visitors | 344,383 - Quantcast Monthly Visitors |
7 | Fark.com
11,438,723 - Inbound Links | 306,597 - Compete Monthly Visitors | 1,767,165 - Quantcast Monthly Visitors |
8 | MyBlogLog.com
1,742,265 - Inbound Links | 1,972,847 - Compete Monthly Visitors | 84,922 - Quantcast Monthly Visitors |
9 | Slashdot.org
13,555,035 - Inbound Links | 724,424 - Compete Monthly Visitors | 269,884 - Quantcast Monthly Visitors |
10 | kaboodle.com
100,266 - Inbound Links | 1,751,763 - Compete Monthly Visitors | 851,858 - Quantcast Monthly Visitors |
Notable Social Networking Websites (Wikipedia.com):
| Name | Description/Focus | Registered Users | Registration | | 43 Things | Goal and Dreams; Tagging | &&&&&&&&01007433.&&&&&01,007,433 | Open | | Advogato | Free and open source software developers | &&&&&&&&&&011000.&&&&&011,000 | Open | | Amina - Chechen Republic Online | Chechens | &&&&&&&&&&&03500.&&&&&03,500 | Open | | aSmallWorld | European jet set and social elite | &&&&&&&&&0150000.&&&&&0150,000 | Invite-only | | Badoo | European young adults | &&&&&&&012000000.&&&&&012,000,000 | Open | | Bebo | Schools and colleges | &&&&&&&019700000.&&&&&019,700,000 | Open | | BlackPlanet | African-Americans | &&&&&&&016000000.&&&&&016,000,000 | Open | | Blue Dot | Link sharing | &&&&&&&&&&080000.&&&&&080,000 | Open | | Broadcaster.com | Video sharing and webcam chat | &&&&&&&026000000.&&&&&026,000,000 | Open | | Buzznet | Music and pop-culture | &&&&&&&&&0500000.&&&&&0500,000 | Open | | CarDomain | Car enthusiasts | &&&&&&&&01600000.&&&&&01,600,000 | Open | | Care2 | Green living and social activism | &&&&&&&&07744297.&&&&&07,744,297 | Open | | Classmates.com | School, college, work and the military | &&&&&&&040000000.&&&&&040,000,000 | Open | | Consumating | "Consumeetings" | &&&&&&&&&&021000.&&&&&021,000 | Open | | CouchSurfing | Hospitality | &&&&&&&&&0281000.&&&&&0281,000 | Open | | Cyworld | Young South Koreans | &&&&&&&021200000.&&&&&021,200,000 | Open | | Dandelife | Collective narratives or "shared biographies" | &&&&&&&&&&&&&&-1.1000000
| Open | | Dodgeball | Mobile location-based service, owned by Google | &&&&&&&&&&&&&&-1.1000000
| Open | | DontStayIn | Clubbing (primarily UK) | &&&&&&&&&0333000.&&&&&0333,000 | Open | | Doostang | Careers | &&&&&&&&&0173000.&&&&&0173,000 | Invite-only | | eCRUSH | Teens | &&&&&&&&04400000.&&&&&04,400,000 | Open | | Experience Project | Life experiences | &&&&&&&&&&&&&&-1.1000000
| Open | | Facebook | General. Popular in USA. | &&&&&&&073500000.&&&&&073,500,000 | Open | | Faceparty | British teens and young adults | &&&&&&&&05900000.&&&&&05,900,000 | Open to people 16 and older. | | Flickr | Photo sharing | &&&&&&&&04000000.&&&&&04,000,000 | Open (Yahoo! login) | | Flirtomatic | Flirting/Dating | &&&&&&&&&0265000.&&&&&0265,000 | Open to people 18 and older. | | Fotki | Photo sharing | &&&&&&&&01000000.&&&&&01,000,000 | Open | | Fotolog | Photoblogging | &&&&&&&&09000000.&&&&&09,000,000 | Open | | Friends Reunited | School, college, work, sport and streets | &&&&&&&019000000.&&&&&019,000,000 | Open | | Friendster | General | &&&&&&&026500000.&&&&&026,500,000 | Open | | Frühstückstreff | General | &&&&&&&&&&011600.&&&&&011,600 | Open | | Gaia Online | Anime and games | &&&&&&&&09300000.&&&&&09,300,000 | Open | | Gather | Article, picture, and video sharing, as well as group discussions | &&&&&&&&&0360000.&&&&&0360,000 | Open | | Geni.com | Families, genealogy | &&&&&&&&&0750000.&&&&&0750,000 | Open | | Graduates.com | School, college, and work | &&&&&&&&&0650000.&&&&&0650,000 | Open | | Grono.net | Poland | &&&&&&&&01350000.&&&&&01,350,000 | Invite-only | | GuildCafe | Online games | &&&&&&&&&&&&&&-1.1000000
| Open | | hi5 | General | &&&&&&&035100000.&&&&&035,100,000 | Open | | Hospitality Club | Hospitality | &&&&&&&&&0328629.&&&&&0328,629 | Open | | Hyves | Dutch | &&&&&&&&03266581.&&&&&03,266,581 | Open | | imeem | Music, Video, Photos, Blogs | &&&&&&&016000000.&&&&&016,000,000 | Open | | IRC-Galleria | Finland | &&&&&&&&&0400000.&&&&&0400,000 | Open | | iWiW | Hungary | &&&&&&&&02600000.&&&&&02,600,000 | Invite-only | | Jaiku | General | &&&&&&&&&&&&&&-1.1000000
| Open | | Joga Bonito | Football (soccer) | &&&&&&&&&&&&&&-1.1000000
| Open | | Last.fm | Music | &&&&&&&015000000.&&&&&015,000,000 | Open | | LibraryThing | Book lovers | &&&&&&&&&0214425.&&&&&0214,425 | Open | | LinkedIn | Business | &&&&&&&015000000.&&&&&015,000,000 | Open | | LiveJournal | Blogging. | &&&&&&&012900000.&&&&&012,900,000 | Open (OpenID) | | LunarStorm | Sweden | &&&&&&&&01200000.&&&&&01,200,000 | Open | | MEETin | General | &&&&&&&&&&072000.&&&&&072,000 | Open | | Meetup.com | General | &&&&&&&&02000000.&&&&&02,000,000 | Open | | MindViz | Custom Profiles, Photo & Video Sharing, Music, etc... | &&&&&&&&&0145000.&&&&&0145,000 | Open | | MiGente.com | Latinos | &&&&&&&&03600000.&&&&&03,600,000 | Open | | Mixi | Japan | &&&&&&&&09830000.&&&&&09,830,000 | Invite-only | | MOG | Music | &&&&&&&&&&&&&&-1.1000000
| Open | | Multiply | "Real world" relationships | &&&&&&&&05000000.&&&&&05,000,000 | Open | | MyChurch | Christian Churches | &&&&&&&&&&070306.&&&&&070,306 | Open | | My Opera Community | General (blogs, photo albums, forums, groups, etc.) | &&&&&&&&01001798.&&&&&01,001,798 | Open | | MySpace | General. Popular in the USA. | &&&&&&0107000000.&&&&&0107,000,000 | Open | | myYearbook | General | &&&&&&&&&0950000.&&&&&0950,000 | Open | | Netlog | Formerly known as Facebox. | &&&&&&&028000000.&&&&&028,000,000 | Open | | Nexopia | Canada | &&&&&&&&01158531.&&&&&01,158,531 | Open | | OkCupid | Dating | &&&&&&&&&&&&&&-1.1000000
| Open to people 18 and older | | orkut | Owned by Google. Popular in Brazil and India. | 0Expression error: Unrecognised punctuation character ",".Expression error: Unrecognised punctuation character ","67,000,000 | Open (Google login) | | OUTeverywhere | Gay | &&&&&&&&&&&&&&-1.1000000
| Open | | Passado | General | &&&&&&&&04700000.&&&&&04,700,000 | Open | | Piczo | Teenagers, Canadians, photo sharing | &&&&&&&010000000.&&&&&010,000,000 | Open | | Playahead | Swedish teenagers | &&&&&&&&&0530000.&&&&&0530,000 | Open | | Playtxt | Mobile social network, location, worldwide | &&&&&&&&&&070000.&&&&&070,000 | Open | | Pownce | Websites, files, and short updates | &&&&&&&&&&&&&&-1.1000000
| Invite-only | | ProfileHeaven | British teens | &&&&&&&&&0100000.&&&&&0100,000 | Open | | RateItAll | General (consumer ratings) | &&&&&&&&&&&&&&-1.1000000
| Open | | Reunion.com | Locating friends and family, keeping in touch | &&&&&&&028000000.&&&&&028,000,000 | Open | | Ryze | Business | &&&&&&&&&0250000.&&&&&0250,000 | Open | | Searchles | Social search and networking | &&&&&&&&&&&&&&-1.1000000
| Open | | Sconex | American high schools | &&&&&&&&&0500000.&&&&&0500,000 | Open | | Sermo | Physicians | &&&&&&&&&&020000.&&&&&020,000 | Open only to registered D.O.s and M.D.s in the U.S.A. | | sexi | Japan (sexual networking site) | &&&&&&&&&&060000.&&&&&060,000 | Invite-only | | Shelfari | Books | &&&&&&&&&&&&&&-1.1000000
| Open | | Skyrock Blog | France, Belgium, French Polynesia, Guadeloupe, Martinique, New Caledonia, Senegal | &&&&&&&&03800000.&&&&&03,800,000 | Open | | Snooth | Wine | &&&&&&&&&&&&&&-1.1000000
| Open | | Sportsvite | Recreational sports | &&&&&&&&&&018000.&&&&&018,000 | Open | | Soundpedia | Music | &&&&&&&&03500000.&&&&&03,500,000 | Open | | Sportsvite | Recreational sports | &&&&&&&&&&018000.&&&&&018,000 | Open | | StudiVZ | University students, mostly in the German-speaking countries | &&&&&&&&02400000.&&&&&02,400,000 | Open | | StumbleUpon | Websurfing | &&&&&&&&03200000.&&&&&03,200,000 | Open | | Tagged.com | General | &&&&&&&030000000.&&&&&030,000,000 | Open | | TagWorld | General (tagging) | &&&&&&&&01850692.&&&&&01,850,692 | Open | | TakingITGlobal | Social action | &&&&&&&&&0145000.&&&&&0145,000 | Open | | The Student Center | Teens and colleges | &&&&&&&&&0800000.&&&&&0800,000 | Open | | Threadless | Custom T-shirts | &&&&&&&&&0364474.&&&&&0364,474 | Open | | TravBuddy.com | Travel | &&&&&&&&&0760000.&&&&&0760,000 | Open | | Travellerspoint | Travel | &&&&&&&&&0105000.&&&&&0105,000 | Open | | tribe.net | General | &&&&&&&&&0602876.&&&&&0602,876 | Open | | TuneDNA | Music | | Open | | Twitter | General | &&&&&&&&&&&&&&-1.1000000
| Open | | Vox | Blogging | &&&&&&&&&&&&&&-1.1000000
| Open | | WAYN | Travel and lifestyle | &&&&&&&&08000000.&&&&&08,000,000 | Open to people 18 and older | | WebBiographies | Genealogy and biography | &&&&&&&&&&&&&&-1.1000000
| Open | | WeeWorld | General (cartoons) | &&&&&&&&01700000.&&&&&01,700,000 | open | | Windows Live Spaces | Blogging (formerly MSN Spaces) | &&&&&&&040000000.&&&&&040,000,000 | Open | | Woophy | travel & photography, photo sharing website | &&&&&&&&&&023000.&&&&&023,000 | Open | | Xanga | Blogs and "metro" areas | &&&&&&&040000000.&&&&&040,000,000 | Open | | XING | Business | &&&&&&&&04000000.&&&&&04,000,000 | Open | | Yahoo! 360° | Linked to Yahoo! IDs | &&&&&&&&04700000.&&&&&04,700,000 | Open to people 18 and older, (Yahoo! login) | | Yahoo! Mash | Yahoo's new SNS - Still in beta | | Invite-only while in beta | | Zooomr | Universal photo sharing | &&&&&&&&&&&&&&-1.1000000
| Open (OpenID) |
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