Sourcing: Please source all data to Nielsen Online. For more information about our sourcing guidelines, go to www.netratings.com Source: Nielsen Online US, Home and Work Month of February 2009
This is a custom list compiled by the Nielsen Online PR team with the help of our media analysts. While this list is not meant to Top 20 Social Network Sites, December 2008 Feb-09 Feb-08 YOY Growth Unique Time per Unique Time per Audience Person Audience Person Unique Time per (000) (hh:mm:ss) (000) (hh:mm:ss) Audience Person Site Facebook 65,704 2:59:55 20,043 1:06:43 228% 170% Myspace.com 54,164 1:35:31 56,313 2:16:06 -4% -30% Classmates Online 15,545 0:08:12 12,955 0:10:21 20% -21% LinkedIn 13,418 0:12:26 7,392 0:10:31 82% 18% Reunion.com 11,220 0:04:12 4,323 0:04:34 160% -8% Twitter.com 7,038 0:08:07 475 0:06:46 1382% 20% Club Penguin 6,073 0:40:07 4,727 0:09:04 28% 342% Ning 3,944 0:13:56 1,464 0:04:43 169% 195% AOL Community 3,637 0:10:29 3,337 0:36:58 9% -72% Tagged.com 3,488 1:16:33 1,316 0:11:51 165% 546% Bebo 3,165 0:11:17 2,255 0:12:42 40% -11% Imeem 2,665 0:06:57 2,187 0:05:28 22% 27% Flixster 2,520 0:12:30 2,619 0:07:38 -4% 64% Multiply 2,394 0:06:34 821 0:05:59 192% 10% Last.fm 2,262 0:03:41 1,980 0:06:39 14% -45% MyYearbook 2,248 1:01:17 1,738 1:00:02 29% 2% Meetup.com 2,216 0:07:33 1,940 0:12:16 14% -38% Care2.com 2,120 0:03:55 1,765 0:04:34 20% -14% CarDomain Network 1,627 0:03:00 1,322 0:05:04 23% -41% Gaia Online 1,544 4:06:10 1,222 2:20:08 26% 76%
* Blue data indicates these estimates are calculated on small sample sizes and are subject to increased statistical variability as a result.
hile this list is not meant to be exhaustive, it should give you a good idea of the significant players in each space. We periodically review the l
h space. We periodically review the list and add new sites, so the results may change accordingly.