StarCraft II

Battle.net
Official forums include community speculation, discussion, input, Blizzard developer Q&As and other information releases.
http://www.battle.net/forums/board.aspx?ForumName=sc2-general

GotFrag
News and coverage with focus on Electronic Sports
http://www.gotfrag.com/sc2/home/

Nuclear Launch Detected
News coverage blog.
http://nuclearlaunchdetected.com/

SC2Blog.com
News coverage and information updates.
http://www.sc2blog.com

SC2GG.com
News and coverage, with focus on English video commentary of competitive matches.
http://www.sc2gg.com

SC2Pod.com
News information and coverage.
http://www.sc2pod.com/news/

Starcraft 2 Center
News and rumours for the upcoming release. Features a blog and bommunity. A site for the fans by the fans.
http://www.starcraft2center.com

Starcraft 2 Site
Fan page contains news in a blog-style format. Also contains pictures.
http://starcraft2site.com/

StarCraft II Asia
An unofficial forum with news, discussion about issues and updates, races, units and balance, strategical, tactical and map specific guides, media, maps, and videos.
http://www.sc2.asia/

Starcraft Legacy
This is one of the top Starcraft websites, with a great community to discuss the upcoming Sequel.
http://www.sclegacy.com/

Starcraft Source
This website provides a comprehensive guide to all the SC2 content out now, as well as a discussion forum.
http://www.starcraft-source.com

Starcraft Vanilla
Forum discussions and news.
http://www.starcraftvanilla.com/

StarCraft2Armory.com
News coverage, blogs, forum discussion and game information.
http://www.sc2armory.com/

Starcraft2Fans.com
Portal containing screenshots and unit information.
http://starcraft2fans.com/

StarCraft2Forum.org
General forum discussion.
http://www.starcraft2forum.org

StarCraft2Galaxy.com
News coverage, videos and screenshots.
http://www.starcraft2galaxy.com/

StarcraftWire.Net
News, interviews, screenshots, videos, guides and forums
http://www.starcraftwire.net

Starfeeder
Tournament competitions, coverage and community discussion.
http://www.starfeeder.com

Team Liquid
Forum discussions regarding speculation and new information, with extra focus on professional gaming.
http://teamliquid.net/forum/index.php?show_part=19

Wikipedia
Article describing the plot, gameplay, units, and development.
http://en.wikipedia.org/wiki/StarCraft_II