You can't go wrong with
Smash Bucks for your retro / classic traffic - we're up to five different classic sites!
Pornstar Classics has a variety of classic pornstars and studios,
Caballero Classics presents the greats from the Caballero Studio,
Pleasure Classics is all Effex Media classics,
Busty Classics is a big tit classic pornstar site, and
Classic Vivid is - you guessed it - the oldies but goodies of Vivid.