[2arrs2ells]

Woot would be another example of a startup with great copy. I buy something like 0.5-1% of all Woots that I see - but I keep checking them because at least 20% of the descriptions make me "lol".

[heinel]

Yeah, and another one I like (that's probably not new by now) is ThinkGeek. The beauty of this is probably how drastically different they all are :)