Currently there are several domains serving the same site. They should redirect to one.
Use “www.” or not, but as I understand there are more benefits with than without (though I wish there weren’t).
Already decided. Decide on using .org or .com for PeercoinTalk.
ppcointalk.org -> peercointalk.org
peercointalk.com -> peercointalk.org
peercointalk.org does www-redirect but ends up with a very ugly URL (http://www.peercointalk.org/index.php?PHPSESSID=5enldh7l1k3eqaeq3oatfetd15;wwwRedirect)
I also suggest enabling SSL, it basically doesn’t impact performance. Perhaps use StartSSL™.
It’s probably already on the list. The favicon for PeercoinTalk should be transparent, and Peercoin.net should get the same. Done.