malware and spyware

I've run into (I think) two of these in the last week or so. I bit on the first one (if that's what it was). The first time, I followed a link from slashdot, and got a malware warning from Microsoft SecuityEssentials. At least, that's what I though it was, I clicked the button to remove...

Last night I tried to add a friend to myspace.com and after browsing through the site, it came to a point where I could no longer navigate it, because I would be redirected to this annoying Wsearch.net site (which I've been redirected many times in the past, sometimes, when trying to load...