Killer app  

I recently started using Mozilla, and I appreciate it so much I feel it deserves some free advertisement here. The browser is, to be sure, slightly less stable than the Internet Explorer I was using, but in exchange I get the ability to eliminate popup ads, or even banner ads (though I haven't yet used this feature, thanks to Matthew Haughey's guilt trip).

By the way, the change isn't any kind of Microsoft protest - I used to be one of those people who spent time investigating workable workarounds for Microsoft products, but Bill Gates's hefty donations to the third world have pretty much won me over - or a least, I'm not unduly prejudiced against his products anymore.