Most of us have some help we can provide back to the community. Even if you’re new, you can write down some of the things you’ve learned. And there are several easy ways to to that – you can certainly jump in on the forums (http://social.msdn.microsoft.com/Forums/en-US/category/sqlserver/) and answer any questions you know the answer for and you can even participate by helping to write a form of documentation – did you know we run a Wiki, where you can edit the documentation? Check it out here: http://social.technet.microsoft.com/wiki/
So take some time, peruse those resources, and write something up. We learn best when we teach others, so don’t think that you can’t give back – you can!