purplekitty - 12:29 am on May 19, 2013 (gmt 0)
Cutts says to just nofollow links you're going to make money from, and even in a lot of those cases Google can tell and will just treat it as nofollow on its own. So I only no-follow affiliate links.
Yeah, I get that's what Cutts is saying, but people are running scared because they believe they were hit by Penguin and virtually no one has seen recovery, so I've seen a lot of scuttlebutt by webmasters to err on the side of caution and just nofollow everything.
And really, I can't say as I blame them. Once I figured out how to nofollow sitewide, instead of going through and nofollowing this and that, I just nofollow everything. It's not like it's going to hurt me...well, anymore than I've already been hurt. My only concern with that was how it was going to affect me with Yahoo and Bing. Hasn't been an issue as far as I can tell.