Web2.0 submission:
>web 2.0 is refer to the new generation of web based service and communities character by participation, collaboration and sharing of information among users online.
>It includes wikis,blogs and social networking sites.
Doing web 2.0 is are really helpful for your website.
Following benefits you gain from doing web 2.0
Web 2.0 are best source to gettnig Do-Follow backlink to your site
Most of Web 2.0 website are free
Domain Authority and Page Authority of web 2.0 sites are very High