Robert_Charlton - 10:24 pm on Jun 19, 2013 (gmt 0)
On the one hand im giving away juice correct?
Nofollowing a link going off-site does not conserve link juice. The nofollowed link is still counted in the denominator as far as the PageRank formula is concerned... but instead of going to elsewhere on the web, the link juice on an off-site nofollowed link simply flows into a kind of black hole and disappears.
If you're worried about the link juice flowing from one W3C icon, then you're in a hording mentality and should adjust. The icon itself, btw, doesn't gain you any points because of compliance. It might demonstrate to someone who knows what W3C is that you care about your site.