Journal: Google's Anti-Spyware Project, now default?

Google's Anti-Spyware Project was reported here about one year ago.
It seems that it's now used by default by the Google search engine, it redirects you to a warning page when you try to visit a "bad" site.
That may be good for some people on request...
It seems to be based on a very bad database look for example at this search the first link (to scienceprog.com) is blocked...
Time to switch to another search engine ?