Belatedly reposted from Google+
It looks like Wikipedia will be participating in the SOPA blackout on Jan 18 (at least, the media is taking twitter comments by Wales to be announcing this as decided). I think this will get a lot more attention from other demographics: so far awareness has been largely limited to techy geeks, while participation by reddit is notable it’s less likely to reach the people who haven’t heard about it. Wikipedia is broadly used. If it looks like this proposed blackout page, it will certainly be dramatic.