Here is a bunch of usefull websites.

Scripts:

http://www.hotscripts.com
http://www.dynamicdrive.com

Webdesign In General:

http://www.htmlgoodies.com
http://www.w3schools.com
http://www.htmlcodetutorial.com

Communitys:

http://www.lithium.com
http://www.phpbb.com
http://www.vbulletin.com
http://www.invisionpower.com
http://navarone.f2o.org/forum
http://www.woltlab.de

Community Mods:

http://www.wbbmods.com (Woltlab)
http://www.phpbb.com/phpBB/catdb.php?db=1 (phpBB)


Templates:

http://www.steves-templates.com
http://www.imperialx.com

Image Programs:

http://www.jasc.com
http://www.adobe.com
http://www.gimp.org
http://www.macromedia.com (fireworks MX)

FTP Programs:

http://www.smartftp.com
http://www.flashfxp.com

Domains:

http://www.ev1servers.net
http://www.godaddy.com
http://www.registeria.com
http://www.2ya.com

Domain Forwarding:

http://www.dot.tk
http://www.freedomain.co.nr
http://www.shorturl.com

Usefull Scripts:

http://www.hewop.com/~yapgb/ (Flatfile PHP Guestbook)

I will add more to the list as I find them

Just to let you know, Invision and vBulletin are only paid retail now.

I know, and so is Lithium but lithium is the one Huge Coporations use so it is very expensive I amagine.

*Wishes I could have lithium*

another pretty cool board script is Burning Board 2 (costs money) and Burning Board Lite (free version for burning board 2, some features are gone so that you'll want to buy their paid version but their are mods at http://www.wbbmods.com/ to put most of them back)

Thanks i'll add those to the list