I just recently learned about this but it has been around for 4 years or so now. Project 1999 is exactly that, Everquest Classic just as it was in 1999. Well almost, it does have the Kunark expansion and level 60 cap.
But it is pretty cool if you're interested in playing the old EQ. This server has thousands of active players, GMs who enforce strict rules (no boxing, macro cheating ect). EC tunnel selling, all the old camp spots are ripe with players.
Its free just have to get the Titanium Edition of EQ, i found mine on the internet at a site with bays of pirates =P.
See this link for more info.
My toons name is Ryzec in game and i am in a extremely helpful guild full of lower level players.