I started using google analytics for my sites and it shows good statistics about the visits of my site with nearly accurate data. But the thing i want to know is well im getting all the report about how many users visiting my site,whats the bound rate,where the visitors coming from but how can i use it to promote my site? should i need to stuff more key words that gets me visitors to my meta description tag ? or some thing like that? what ever please give me an overview about how can i use this data effectively to promote my sites.