Web Site Bounce Rates
Bounce rates are that percentage of your website visitors who leave your page after viewing only the entrance or landing page.
Some recent web discussions have focused on whether Google may now be using bounce rates as part of your site ranking for particular terms. The evidence, while intriguing is still rather flimsy. Yet the discussion continues to miss an important potential confound: Bouncing is the result of visitors not finding your site useful to their needs (needs indicated by their search terms)