Safe Browsing
Having written an article on the alternatives to IE I guess it makes sense for me to promote Browse Happy which is "brought to you by The Web Standards Project" another project I totally support and agree with.
(Hint: Stick with the text links when you're visiting, the images of the people kept producing 404 errors when I clicked them)
Incidently, hat tip to Matt for the heads up. (a hat tip is recognition, in this case for the link, for those who don't know what I'm on about)