LogMeIn

I cannot believe that I just posted so much crap... anyway. I haven't found any really good sites recently, but if you haven't already seen tools like it check out www.logmein.com
BTW, the mac version is still in beta.
Anyway, I now use the Opera web browser on Windows and Firefox on Linux.
Oh, if you're a geek and feeling depressed for whatever reason, have a look at Computer Stupidities.