I'm trying to figure out how google indexes the site. What I mean by this is on some of my sites it indexes it as site.com and not www.site.com, but then my inner pages will be www.site.com/innerpage.html on google search. How do I change my homepage to www.site.com ? I've already tried webmaster tools and that doesn't work. If I start mass backlinking with www.site.com, will that change it? Also, on some of my sites, it will automatically index my site as www.site.com without me doing anything. I'm not sure how that site is different than the situation above.