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.
Please keep in mind that only if you participate on such created blogs regularly, they will pass on benefits or it won't because you will be doing the activity from the point of view of building backlinks and will mostly avoid updating them with unique and fresh content on regular basis.