I think almost all open source projects are looking for help.

Perhaps "looking for help and has a gameplan for new contributors"?

Isn't that basically OpenHatch?: http://openhatch.org/

I think an Ask HN is better suited to this purpose than a dedicated website.

Are you looking for help with MediaCrush?

Yep. Come join #mediacrush on irc.freenode.net for a chat.

I would love it. I want to work in some open source project, but can't find any small project where i can start. I haven't worked on any, so this can be a way to a great start.

If you're looking for something now, you might want to poke around my GitHub profile: https://github.com/SirCmpwn

I work on a bunch of interesting stuff and all are open to pull requests.

Thanks. I am learning Angular these days. Do you have something regarding that, I would love to work on.

If you're looking for something to contribute to, TheOdinProject looks like a fun project. I saw them on HN a few weeks ago (March 25th). https://github.com/TheOdinProject

Spokenvote is heavy Angular and would love the help: http://railsforcharity.github.io/spokenvote/

Nope, nothing with Angular. Always good to broaden your horizons, though.