Apple
• Apple Downloads page
• Apple RSS Newsfeeds listing
• iBook and PowerBook Battery recall program
• Power Mac G5 Repair Extension Program for Power Supply Issues
• iMac G5 Repair Extension Program for Power Supply Issues
• MacBook and MacBook Pro Battery Update 1.2

Adobe
• Update start page (choose your product)
• New Downloads page (in the past month)
• Adobe Knowledgebase

Quark
• Quark Downloads page
• Technical Support Database