Evite

I found this cool website tonight:Evite.
You can plan and invite people to parties through forms and such on the internet. Then the site will send an e-invitation to all your invitees. And they can respond with a yes or no as to whether they'll be there or not.
Granted, I've never had much luck with regular invitations, phone email or otherwise, but maybe this might change my luck.
Who knows.
We'll see.