Google to Join SOPA Protest

This has been discussed in another post: http://news.ycombinator.com/item?id=3475587

Personally, I think it's nice that they're taking some sort of action by putting a notice on their front page, but as people have said before, an awful lot (if not quite the majority of people) search straight from their browsers address/search bar, so will bypass this message completely! Why not put a small black bar/notice at the top of all search result pages? Surely that's the place that would be most affected by SOPA/PIPA anyway (censored search results)?