The DWARF Debugging Format has a new home: http://dwarfstd.org.
The website has an updated FAQ, as well as a tutorial on Dwarf. There are links to sign up for the Dwarf Discussion mailing list. The DWARF Standard Committee will be considering proposals for the next revision of DWARF. You may submit proposals by using the form on the website. If you are interested in being an active participant on the DWARF Standard Committee, please contact me directly. -- Michael Eager, Chair, DWARF Standard Committee