GoG gifts

http://www.steamgifts.com/trades

it was free on gog so you wont get any big deal

You can also drop the key in forum, or something like that....trading...might be diffucult as Witcher 2 was free on Gog

I see...thanks guys.

You could also try offering it in the GoG forums around the holidays. Usually there is a nice gift exchange and I am sure someone still doesn't have Witcher 2 yet. :)

eh, I'd be careful if I were you since GOG's had a lot of problems with scammers/key resellers lately (particularly with TW3)

If you bought a gog key from a third party reseller instead of from the gog store itself (outside a few bundles) you probably got scammed by some shady site and they won't let you or anyone redeem it.

edit whoops, thought you meant TW3, not 2.

You can always make a puzzle on itstoohard, so that first solver would receive the key.
Also, you may just drop it in discussions, I'm sure someone would take it.

I will offer it on my steam activity page first to my friends if no one takes it.. i will just make a really easy puzzle here.