Please Explain to Me what is a Dofollow... 

“Do follow” is the opposite of “No-Follow”.  This no follow attribute comes into play with the posting of blog comments. The no-follow tag tells the search engines NOT to follow the link to any other web sites.

The logic behind using no follow is, it’s good for the blog since there will be fewer outgoing links and therefore less “link bleed”, leading to better Google page rank. Using no follow also makes sense because there are blog spammers out there who will, and have, posted blog spam comments solely for the benefit of getting more incoming links to their site, which helps page rank. Do Follow blogs are going against the norm and turning the No-Follow tag off, enabling do-follow of out going comment links.

Why am I always look for Do-Follow?

You want people to comment on your blog posts. You want more of an interactive community. That’s what Web 2.0 is about – community, relationships, and user created content.

But, how do you encourage people to comment on your blog posts? You give them something in return. You give them an outgoing link to their website, when they make a quality comment on your blog. You also allow the search engine to follow that link to their website by using the do follow attribute.

You also need to let people know that you are a Do Follow Blog. Some visitors will have no idea what that means, but those who do know what it means will appreciate it and will often leave a comment.

How to check if the blog is  dofollow: