uClibc Dev Mailing List
uClibc has a mailing list for discussion and development. You can subscribe by visiting this page. There is also an online archive. Only subscribers to the uClibc mailing list are allowed to post to this list.
uClibc Commits Mailing List
There is also a mailing list for source commits for people wishing to read the complete diff of each and every change to uClibc -- not for the faint of heart. Active developers can subscribe by visiting this page. The Git server is the only one permitted to post to this list. And yes, this list name uses the word 'cvs' even though we don't use that anymore ...
Search the List Archives
Please search the mailing list archives before asking questions on the mailing list, since there is a good chance someone else has asked the same question before. Checking the archives is a great way to avoid annoying everyone on the list with frequently asked questions... You should also check the list of Frequently Asked Questions, since the answer you need may very well be listed there.