In GWMT I see links pointing at my site, but by inspecting them, nearly all are NOFOLLOW links. I expected only "valid" links to be considered by G. The links are about 3-4 years old (2009), so I can think that they once were "valid" and now they might be nofollow...but in this case why do they still show up in GWMT? Is it not updated "regularly"? If I search with the link: command, I get 0 results, although some of the links are actually "valid". Maybe I'm missing something.. Can someone clarify? P.S. "valid" used instead of you know what.