Citeam pe gramo despre un plugin numit DoFollow.

This is a plugin for WordPress. It will disable the automatic rel=”nofollow” attributes added to external links. You may want to do this if you have good spam filtering for your comments, or if your blog is moderated.
Optionally you can also set a comment age limit for adding the attributes, or have them removed differently from comments left by registered users and other visitors.
Pingbacks and trackbacks are just different types of comments in WordPress. This plugin will take care of all of them. You can also choose not to remove rel=”nofollow” from some types of comments.

Uhh.. Atunci cand pe bloguri lasati un comment, valabil pentru cei care au site/blog, si in semnatura publica siteul, google nu vedea acest link. Din cate am inteles eu, acum acest ajutorul acestui plugin, linkul din semnatura o sa fie afisat, o sa fie indexat de google si o sa duca catre blogul, siteul tau. In fine ..nu am sa il instalez ;d