Warriors, please critique my site and concept

Oooh very nice, BUT I almost left at the interests page.

Make it more appealing for me to click on the interests to find related gifts..

The line..

Simon is interested in... (isn't appealing for me).

How about

Click on Simon's snazzy interests below to discover gifts..

And have the word 'snazzy' rotate, not always the same word.

This is a very good idea , i like it, try to promote it as much as you can, try Facebooks Ads

Cool concept. No idea if its been done or not and I've not used it, but your homepage explains it really easily and simply, which is good.

Your "headline" could be better though.

Instead of "Need help finding meaningful gift ideas?" you need something that generates an emotional response. Nobody 'needs' this service. There are gift list type sites out there. Nobody woke up this morning thinking 'what I really really really need today, is something that tells me what to buy people'. So you need something that a) gets attention and b) makes them respond emotionally.

Think about what your ideal end user really wants. Maybe they want it to be easy to buy gifts and not have to spend tons of money. Whether its that or something else work that into your "headline" to get the attention and make people feel like they need to set this up and start using it straight a way.

When people ask you "what does Giftless do?" you want such an awesome response that once you've told them, they ask "Wow. How does it do that?". When you generate that kind of response, that is your perfect "headline" and also USP.

The only other thing I'd say is..you say "We use Facebook interests to recommend the best gifts." then below it says it will ask me to select my friends interests. That isn't congruent. You really want it to generate the ideas based on the interests of my facebook friends, if I have to think about their interests, its not longer easy or fun.

The 3 simple steps is great btw, so don't change that. It gets across what the thing does super simple, super quick. Just change it to reflect what you said above about "We use Facebook interests to recommend the best gifts."

Ok so, I installed the thing. My wifes bday is coming up soon and, it actually generated some useful suggestions. Problem here is see is there is no localisation, I live in the UK. It's showing me stuff in dollars! Whilst you may be targeting the US right now, in future think about working it so that you adjust the suggestions to whatever country the end user is in.

Cool concept though.

Great concept. Once you fine tune the interests and localisation matters I think this is going to be a winner.
One adequate way of promoting it, and imo the best is with kacebook ads. This is a facebook-integrated platform and promoting it directly on facebook is the best way to go. For an immediate jump you can also try fb pages advertising, guest posts on populat walls, etc..
Nice one