CMS:
http://drupal.org/
http://www.joomla.org/

Project Task Mgmt:
http://www.dotproject.net/

Books:
http://www.packtpub.com/

Hosting:
http://godaddy.com

Stock Photos:
http://us.fotolia.com/godaddy

e-commerce:
http://www.oscommerce.com/

on-line forum:
http://www.simplemachines.org/

blog:
http://wordpress.org/