Free Web 2.0 For Your Small Business Ebook Download at br br Social bookmarking is becoming an important source for gauging the pulse of a community or industry. br Popular social bookmarking sites include del.icio.us, Digg, Stumbleuppon, Furl, reddit, and Newsvine. Basically they allow users to share websites, articles, videos, blog posts, etc. that they find interesting with others. And guess what, this is another good way to get more links and draw attention to your online content.