I am having a doubt about the blogger comments. Do you think comments posted in the blogspot are "no-follow"? But I do think it is do-follow comments... What is your opinion?
comments in blogger are no-follow by default. ut a blog owner can turn them to do-follow with small hacks.
Blog can be nofollow or dofollow depending on the site owner. But I think even the blog uses no follow google still count them as backlinks. They can also be a source of traffic.
You can find out easily by looking at the source code of the page. If you see a no-follow attribute on the links then you'll know what you have.