Web 2.0 is a technique which helps you to make your website on other domain like wordpress, weebly, jimdo, blogger etc.
In web 2.0, you easily add your blog which helps you to build backlinks.
To get more traffic, you need to do strong off-page of your website. I am sharing with you like...
Blog Posting
Guest Posting
Article Submission
Forum Posting
Content Curation