Can you rank a website with web2.0 sites even these sites don't have backlinks but have hq content? technically the most web2.0 like blogger, wordpress, weebly, webs, etc have high pagerank but only their hompage, not your subdomain or whatever your link look like... so your subdomain blog will be 0 without backlinks or they have some authority even if they are a subdomain? so... I know if your web2.0 profiles have some backlinks will be more fine but if these don't have any backlink? Any advice is appreciated. Thanks.