I want to participate in linux kernel development, where can i find some what is needed to do?

I want to participate in linux kernel development but i don't have idea what, in technically meaning i can do (i am looking for tasks). I am experienced C programmer, i know some linux kernel, i have some experience in simple driver writing, some modifications for my own purpose in kernel drivers.I am looking for some TODO list, someone who will propose me a task. I know about mailing list, but the main list is too big. Maybe some internet forum, irc channel something like that.