If you are interested in contributing to Fedora, please check out the following resources:
If you already contribute to Fedora in one area and want to help others get involved (or want to get involved in other areas yourself), join the SIG, mailing list and IRC channel to help new contributors become involved. The SIG has a wiki page located here as well.
As a 'new' Fedora user/contributor myself, I think it is awesome that the Fedora community is so committed to making it easy for people to get involved and give back to the community. The Fedora community is very open and welcoming. I'm very happy to be a part of it!