Senses: Elves can see normally under moonlight, starlight, and torchlight without any penalties. Also, those pointy ears aren't entirely for show, they have a +2 to rolls involving listening.
Move Silently: Elves always treat Move Silently rolls as Prime in wilderness areas.
Spell Resistance: Elves gain +10 on rolls to save against spells and magical effects involving charm or sleep.
Spot Secret Doors: Elves often live in strange, hidden places, and have a natural talent for spotting concealed entrances and passages. They unconsciously get rolls to see them, based on Wisdom, and also get a +2 to rolls when actively searching.
Weapon Training: Elves automatically start with Weapon Level 0 in one of the following weapons: Longbow, Shortbow, Longsword, Shortsword. Whichever they choose, they may always put weapon slots into that weapon even if their class normally does not allow it.
Attribute Mods: +1 Dexterity, -1 Constitution.
Elven Thieves and Rangers: +2 to move silently, +2 to find traps
Elven Bards and Wizards: +2 to knowing the history of an item of Elven manufacture