I'm not sure it's a wise idea to seek for funding at this point. You've got to be able to prove that the site can grow quickly and generate good value before even thinking to ask for investment. Bitcointalk and reddit are so strong in this terms. Value, and truly community driven. I'm not saying it's a bad idea at all, and you know competition is always good for the community but until you can show that people gain something better on another platform, than the existing ones, you can't really call it a success.