Be Excellent To Each Other

Humble Bundle now connects to your Steam account to register your game keys for you. This is much simpler, but it means you can't share the keys easily any more

If you try to register a game you already have, it says and at the bottom of the page is

However, I think you can still email the game to someone via Humble Bundle - does anyone want Batman: Arkham City GOTY on Steam to try it out?

I think you just click the gift box next to the key and give the email address of someone, and then they get sent a key.
You could always give an alias email of your own and see what turns up?

They changed it a while back but it does now allow gifting of any games you already have - the few extras I had were in the 'free' stuff thread in the members forum and i think SilentElk grabbed one of the games I put up ?

I certainly did. It sent me a link to the Humble Bundle site, then sent me a Steam code via email.

Stupid latest Humble Bundle needs uPlay and I didn't realise because I only looked at the pictures

Yeah I was tempted until I saw the little 'U' logo underneath. Fuck that.

Likewise.