A WebmasterWorld thread has one webmaster saying that he is on the verge of just setting up all his external links on his sites to be nofollowed by default.
He said he was checking his linkage data and noticed that a "huge percentage" of those linking to him all use nofollow on those links. He said, if everyone else is doing it, why not do it himself. So he is considering switching all his external links to add the rel="nofollow" attribute to the link.
Of course, that will prevent any link juice to be flowed from his site, outward to third-party web sites. One person said, "I wonder how this will effect the algo, have google / yahoo shot themselves in the foot when they came up with this idea?"
So, do you nofollow, if so, how much? Take our poll:
Forum discussion at WebmasterWorld.