I'm working on a web app and launching in the next few days, I finally came up with a name "jellyblub" and got the domain. My thing is that I'm a little embarrassed about seeking funding because it's nothing new really. It is like a craigslist but instead of cities people choose a college near them and meet there for the transaction. In the app users can message each other and follow favorite users and can then be added to their stream. Originally it was to just buy and sell textbooks from and to students but I added more categories. Is this good enough for a startup?
It might be.
If your site is just going to target college students as it's niche, you have a far better chance at making it a success than creating a generic craigslist clone.
TL;DR Instead of a craigslist clone, think of creating a market place targeted to a specific audience (college students, in your case) with the emphasis being on seller reputation.