Although the title of this post sounds extremely boring, the opposite is actually true: )
If like me you thought that things like Microsofts cleartype system just chucked a bit of anti-aliasing on text, have a read to see how it really works. It's a really clever explotation of one of the idiosyncracies of LCD technology.
And if that's piqued your interest, here's how you can do it in flash.