Funkmaster Flex on July 4th played a commercial free five hour set on Hot97 of pure classic hip hop goodness from the 1990s (minus "Hammer and Young MC").
Some dude broke up the set into four mp3s which you can download here.
It's a must have for any hip hop fan or connoisseur. I've been listening to it all night (I doubt I'll be able to listen to the entire set considering it's five hours long in case you forgot) and it's simply hot, although a small minor complaint is that sometimes there's a little too much Funkmaster Flexing his big mouth. Nonetheless the songs fit really perfectly with the hot summer nights and it makes me want to get in a car with a couple good friends, nod our heads along to the beats, and just drive somewhere.