If the issue on nofollow tags pesters you, might as well illuminate your blurry perspective...

Rand at SEOmoz published some great information about the subject matter. He asked Matt Cutts about a number of things related to the issue and formulated his own stand.

Matt says:
The nofollow attribute is just a mechanism that gives webmasters the ability to modify PageRank flow at link-level granularity. Plenty of other mechanisms would also work (e.g. a link through a page that is robot.txt'ed out), but nofollow on individual links is simpler for some folks to use. There's no stigma to using nofollow, even on your own internal links; for Google, nofollow'ed links are dropped out of our link graph; we don't even use such links for discovery. By the way, the nofollow meta tag does that same thing, but at a page level.

Rand says:
Nofollow is now, officially, a "tool" that power users and webmasters should be employing on their sites as a way to control the flow of link juice and point it in the very best directions. Good architectural SEO has always had some internal link structuring work involved, but nofollow and Matt's position on it makes it clear that for those of us who are professionals, we can be use it intelligently without a downside risk.