Better Late Than Never
I've got a few notes to add for the Forgotten Realms elves:
1) Grey elf is a derogatory name for the moon/silver elf according to the novel "Evermeet - Island of the Elves." The phrase is altered slightly by gold elf supremacists to mean, "dross."
2) Drow were originally brown skinned but cursed with black skin when the Elven Goddess of Fate Araushnee betrayed the Elven gods and was transformed into a demon and banished.
3) Near the end of 3.5e, a Chosen (empowered champion) of Mystra (Goddess of Magic) by the name of Khelben "Blackstaff" Arunsun got a bunch of elves together to use high magic to raise an ancient elf city by the name of Rhymanthiin. Right about this time, good and neutral drow everywhere were reverted to the brown elf. Rhymanthiin was raised in the 3.5e novel "Blackstaff Tower." Not sure when the brown Drow came around but if I recall correctly it involved Drizzt Do'Urden.
Basically, we have another race now though I think it's not a prominent one (seeing as I good, let alone brown, Drow are rather unpopular with a lot of players).