Here are a couple of user experience resources I’ve come across in the past and figured I’d put them here. They are for 3 companies that have shaped computing as we know it today.

While Apple wasn’t the first company to have done a user interface guide, nearly 20 years ago, they were the closest thing to what user experience designers call patterns.

I haven’t sat to compare and constrast the differences, but it might be a fun bit of analysis.

• Apple User Experience
• IBM (User Centered Design) (they’ve got an entire area dedicated to research as well. You can find that here.)
  
• UI Design from Microsoft’s MSDN