Some questions

Why is the site so simple? Do they plan on making it a little bit more interactive?

In their own words

“ListCamp is an application for creating lists and sharing resources.”

Why it might be a killer

Like I mentioned before, this site is a great way to measure what crowds really like.

What it does

Are you up for some list making? This often-overlooked hobby provides distraction for millions of people. Over at Listcamp.com you’ll be able to start lists for others to finish. For example: you can start a list of the most useful Firefox Addons. The list will then allow other users to read it and modify it by a vote system. People have been talking about the wisdom of crowds for years, but this is the first site I’ve ever seen that could successfully measure it. Companies could use the information on the site to determine how popular their product is or what people find useful about it. Since the concept is so vague, there really is no limit to what you can do with these lists. The site uses Google accounts to sign in. Anyone with a Google account is instantly eligible to start making lists and sharing them with their friends.

Source: Killerstartups.com