I strongly believe there is no need to duplicate information found on other peoples internet sites. To that end this my list of "Best of Links". Maybe some of them will be useful to you.
Electronic Parts
Clubs - Southern California
San Bernardino Microwave Society - SBMS
Downey Amateur Radio Club - Great local radio club. Big on pubic service.
Western States Weak Signal Society
United Amateur Radio Club - K6AA
ARRL - The biggest organization of Ham Radio, National
Candy Stores (Radio Vendors)
Radio and Equipment Manufactures
Ham Sites - with lots of great information
WA6CGR - Projects, Kits and Links
KM0T - Projects, Kits and Links
W1GHZ - Projects Kits and Links