I have been having trouble figuring out exactly how to tell if a blog/website is DoFollow or NoFollow, any surefire ways to check?
If you are using firefox, just right click on link and check properties, if it shows nofollow or external nofollow then the blog is nofollow,otherwise dofollow.
So even if the link has no rel attribute it's considered DoFollow? I just figured if there was no specification it was considered NoFollow
you can check the code, if it has a rel=nofollow then it is! Some good firefox plugins or add-ons can highlight the nofollow links. I recommend SEO for firefox and SEOquake.
You can try firebug plug in on Firefox. Click inspect and highlight the link; it should tell you if the link is is rel="no follow" or sometimes rel="external no follow"
There's a Add On for firefox that helps tell you: https://addons.mozilla.org/en-US/firefox/addon/5687 Dan
I've been using Searchstatus which is a plugin to firefox for quite a while and it has worked great. It has a feature where all nofollow links on a page are highlighted, so it saves a great deal of time. Actually, there is no such thing as 'dofollow', its just a term introduced to indicate that a particular link is 'not nofollow'.