There are two Linux/MIPS-oriented mailing lists:
This mailing list currently has the most traffic. It is especially of interest as a good number of active developers are subscribed to this list.
This is an announcement only mailing list to which a message for every CVS commit into linux-mips.org's, CVS archive of the Linux/MIPS community, is being sent. This allows following the development as it happens.
Subscription to this lists is handled via Ecartis (firstname.lastname@example.org), just send an email with the words subscribe <list-name>. In order to unsubscribe, send unsubscribe linux-mips. Sending the word help will reveal further secrets about the advanced use of Ecartis. There's also a web-based interface to Ecartis.
Note linux-mips.org is using the Explicit Congestion Notification (ECN) TCP extension as described in RFC 3168. The bug is known for years yet still defective firewalls that are dropping TCP SYN packets with ECN bits set are in use. If you can reach linux-mips.org yet don't receive any email from any of the linux-mips.org mailing lists you may have this problem.
The majority of subscribers doesn't seem to like HTML email, so please disable HTML for postings.
There are archives for these two lists in UNIX mbox format and a searchable web archive. The web archive is re-indexed every few hours, so usually it's a good idea to try it first when searching for anything that might be archived on one of the lists. Archives are also maintained for a few historic mailing lists.
There is an IRC channel named #mipslinux for Linux/MIPS which may be found on irc.freenode.net.
For those who always want to stay on the bleeding edge, and want to avoid having to download patch files or full tarballs, we also have an anonymous CVS server. Using CVS, you can checkout the Linux/MIPS source tree with the following commands where you insert linux, libc, gdb or faq for <repository>:
cvs -d :pserver:email@example.com:/home/cvs login (Only needed the first time you use anonymous CVS, the password is "cvs") cvs -d :pserver:firstname.lastname@example.org:/home/cvs co <repository>
The "linux" repository contains a linux_2_2, linux_2_4 branch and Linux 2.6 on the trunc.
There is a mailing list for information on what gets committed to this repository.
Via cvsweb, you have direct access to the new Linux/MIPS kernel sources, and a few other projects hosted in the same CVS archive. The intuitive interface allows you to follow the development at the click of your mouse.