A member asks, “I’m listing a 2 to 4 useful links on most of my site’s pages (mostly to government websites). Should I be making them nofollow or dofollow?”
At first, the consensus to not bother with no-follow links. But then…
I had 4 links on that site to external sites. Google thought those 4 links were paid links. They weren’t. Well, actually 2 were, but they were image ads, not text links. The other 2 were text links, but were not paid links. I’d always been under the impression that Google understood image ads were ads. I was wrong about that. In any case, Google slapped me with a PageRank penalty.
What to do for your site? Discussion: Should I Attach Nofollow To Good External Links?