Hello Dear,
- Web 2.0 is content Posting Activity and Website Builder.
- It's Use Generate quality backlink(link building).
- Do-Follow and High Domain Authority site web 2.0 site submission Good for ranking.
- Web 2.0 submission is Blog Marketing Activity.
- Web 2.0 sites like:
- Blogger
- Wordpress
- Kinja
- Weebly etc.
Thanks.