<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/04e3c6d2-e314-444b-81ae-4f22d530e4c8/3A32AF89-CFC6-4882-9AD5-0CD4797C3938/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.mediapost.com/publications/?fa=Articles.showArticleHomePage&art_aid=93329" href="http://www.mediapost.com/publications/?fa=Articles.showArticleHomePage&art_aid=93329" style="font-size: 11px;">www.mediapost.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.mediapost.com/publications/?fa=Articles.showArticleHomePage&art_aid=93329"><SPAN class="articleText"><SPAN></SPAN>Twitter, Tagged and Ning were the fastest-growing social networking sites in September, according to Nielsen Online. Starting from a base of less than 1 million visitors a year ago, each has at least tripled U.S. traffic since then.<P class="articleText"> Micro-blogging site Twitter has grown almost fourfold from 533,000 to 2.4 million visitors.</P><P class="articleText"> Among more established social networks, LinkedIn was the fastest-growing--nearly tripling its audience to 11.9 million. That growth rate helped the site for professionals this week close another $22.7 million in venture capital. In June, it raised $53 million. </P><P class="articleText"> Facebook continued to grow at a healthy clip, more than doubling its traffic from 18 million a year ago to 39 million. MySpace remained the largest social network with an audience of 59.3 million, but its traffic has been essentially flat, increasing only 1%.<I>--Mark Walsh </I></P></SPAN></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/3A32AF89-CFC6-4882-9AD5-0CD4797C3938/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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