Anyone here who has built websites will know about the tedious chore that is Internet Explorer 6. It is so archaic by today's browser standards that you have to program in a lot of extra code to try and support it. Sadly, a lot of people are still using it and they really do need to be pushed to upgrade.
Mashable has a good article here: IE6 Must Die for the Web to Move On.
See www.ie6nomore.com for a handy bit of code that will do the work for you and hopefully see an end to IE6.
The campaign also has a Facebook page.