Below is a list of useful links. If you have one please lets us know and we will add it.

Getting Started:

The obvious:
Blender

Brave? Get the newest Builds

http://blenderartists.org/cms/

http://www.blendernation.com/

Need a Blender tutorial?

Check this link

Great tutorial sites:

http://blenderunderground.com/

http://blendernewbies.blogspot.com/

http://www.malefico3d.org/

Resources:

Textures:
http://cgtextures.com/

http://matrep.parastudios.de/index.php

Reference images:
http://www.the-blueprints.com/index.php?blueprints/

Free sound files:
http://www.findsounds.com/

http://www.freesound.org/forum/index.php

Mocap:
http://freemotionfiles.blogspot.com/

Time to make it real:

http://www.shapeways.com/

Sending a file:

Image exchange:
http://imagebin.org/

Blender File Exchange:
http://www.2shared.com/

Need a font?

http://www.1001freefonts.com/

Connecting to others:

IRC clients

http://en.wikipedia.org/wiki/List_of_IRC_clients

Blender IRC:

Blenders Internet Relay Chat Channels cluster on
irc.freenode.net, a server network dedicated to support for open source and free software, and their communities.

#Blenducation: Please drop in to chat about Blenducation or Blender.

We will be happy to hear any ideas or suggestions for the site or lessons, as well as talk to anyone wishing to present lessons themselves.

#Blender: General Blender channel.

#BlenderQA: Blender user support, please ask your question and wait.

#BlenderChat: Blender Community chat channel

#BlenderCoders: For those wishing to work on the Blender source code

#GameBlender: Blenders Realtime engine, Support and chat