How should i sell cd keys

I have a bunch of cd keys i want to sell. Where should i sell them?

Anywhere on the Internet that buys CD keys. -_-

I ment on here, i should of been a little more specific.

Marketplace?

Anywhere on here that allows the selling of CD keys. e.g. User Stores and Junkyard. Another question so easily answered by the fact that the descriptions of the "user stores" forum deliberately mentions that shit is to be sold in it.