Naval news & updates

I can recommend:

NOSI – Naval Open Source Intelligence
http://www.nosi.org/

Marineforum Zeitschrift (in German only)
http://www.marineforum.info/

Another coupla sites site of some interest from time to time:

http://www.strategypage.com/htmw/htsurf/default.aspx

http://www.globalsecurity.org/index.html

To keep up with USN aviation:

http://www.ne.jp/asahi/gonavy/atsugi/index.html

Some discussion sites:

http://www.defencetalk.com/forums/forumdisplay.php?f=22

http://p216.ezboard.com/bwarships1discussionboards

http://www.worldaffairsboard.com/forumdisplay.php?f=19

http://p074.ezboard.com/fhistorypoliticsandcurrentaffairs68862frm9

OTHER daily news sites of interest:

http://www.defensenews.com/

http://www.defensedaily.com/

http://www.insidedefense.com/

Another monthly site with some USN reports:

http://www.nationaldefensemagazine.org/

For the UK Royal Navy its official site is quite uesful in general and for most of its surface combatants there is also an individual unit specific news feature.

http://www.royal-navy.mod.uk/

Many, many sources (including the ones you mentioned plus other discussion sites) but these three are quite useful on a daily basis:

http://www.seawaves.com

http://subsim.com

http://www.navytimes.com

also monthly here:

http://www.navyleague.org

nosi is a good site lots of US news on that