I am starting a list of sites with a lot of cruising information in the form of a wiki or similar format (not blog). If you contribute to a wiki or have a forum you like a lot, please list it here.

http://www.noonsite.com/
https://activecaptain.com/
http://www.cruiserswiki.org/wiki/World_Cruising_and_Sailing_Wiki
http://www.cruiserlog.com/forums/
http://www.ssca.org/forum/index.php
http://www.cruising.org.uk/forums/
http://www.captainwiki.com/
http://www.cruiser.co.za/cruising_wiki.asp
http://www.justmagic.com/GM-GE.html
http://navionics.com/en/webapp
http://earthnc.com/online-nautical-charts

Vice Commodore, OCC