Facebook Threat To Google Is Growing

From December 2007 to December 2008, social networking website have expanded their user base by 13 percent, according to Comscore. Facebook showed an exceptional performance increase--in that period, Facebook experienced a 57 percent gain. Part of Facebook's strength (in the eyes of the advertising and SEO community) is their "word of mouth" referral style that provides a huge traffic boost for sites like PerezHilton.com and Cafemom.com.

Ultimately, Facebook and other social sites like Twitter are emerging as a serious threat to Google and algorithmic-based search engines.