Any interesting linux projects?

I would like to work on some open source Linux projects. Please share some interesting projects that i can work from home. I am not looking for anything specific. Anything would do. Any interesting debugging tool or some new feature or that of fixing errors in bugzilla.. Please list anything. Only thing is i Know only C and Assembly(AVR and ARM). I know i am far from contributing to the mainline kernel. So want to start from something small where less competition is there to start with. I think the project we choose depends on our current skillset, so is there any site that kind of lists these projects and order it based on the skills? :) No i guess. But still any good sites are also welcome.