born2run - 1:09 am on Sep 15, 2010 (gmt 0)
If you have a popular site with popular topics, I'd highly advise you to integrate with Facebook & Twitter to increase your adsense earnings and site traffic.
With facebook you create a group for your site. With twitter you create an account with them using your site name. Use bit.ly to create an account and post your latest articles with shortened urls in Twitter and facebook.
Increasing the facebook and twitter followers is another ballgame but it's worth the time spent as now Facebook has surpassed Google in time spent with users on the net. Same with Twitter. The traffic is enormous!
So there's my two cents worth. Happy facebookin' and twitterin'