Just out of interest, do blogs hosted by wordpress (ie: XXXXX.wordpress.com) pass on link juice, or are they nofollow? I searched but couldnt find anything! Thanks
As far as I know they are dofollow. If you are unsure, just view the source code and physically check if the links have the rel="nofollow" attribute. They should pass on link juice/PR.
Also if you mean on commenting on Wordpress blogs, it depends on the setting of the blog owner or maybe by default they are nofollow.
it depends on the link. If you get your link from commenting then it might be nofollow. If you like to be sure that you are getting a dofollow link then check the source code.