Hi, yes Social book marking increased you volume of traffic and it's also help for improvement in Site rank, because you can gain more links for using of Social book marking you can be apart of an online group, which gives you direct access to possible viewers(visitors) of your site. Thanks!
Can you please explain how we can increase traffic, I mean how to do social bookmarking? And after that can we get query from our site?
yes!in fact social bookmarkings is a good source of traffic but you have to keep your blog or site updated.you should create unique and fresh contents.