Here's a bit of an update for those interested in exploring microwave ham radio. Please feel free to add more to this post!

• 10 GHz from microwavers.org
• Getting Started in Amateur Microwave Radio from Reactance Labs
• 10 GHz Radio from Reactance Labs

Links from p. 14 of the July - August edition of RAC: The Canadian Amateur:

• Q5 Signal
• SG Laboratory
• Minikits
• Kuhne Electronics