I saw RF Cafe mentioned on the RF Globalnet forums. Never heard of this site prior to that, but I do recognize Kirt's name from the RFG forums. The site claims to have been around since 1996, but this is the first I've ever heard of it.
This looks like a pretty good collection of a variety of goods. The humor pages are - humorous
I'm a crossword puzzle junkie (good exercise for the mind, according to research!), so the engineering puzzles are nice.
It's good to see a commercial website not afraid to exhibit a degree of Amercian patriotism
Keep up the good work. Now that I know about RF Cafe, I'll be back.