OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com
4GB Kit (2 X 2GB) DDR3-1066 (PC3-8500) RAM Memory Upgrade for Apple MacBook Pro 13"/15"/17" Mac Mini Core 2 Duo 2.0/2.26/2.53ghz; MacBook 13in Equivalent to Kta-mb1066k2/4g (Genuine A-tech Brand) at Amazon.com
Crucial 2GB Single DDR3 1066 MT/s (PC3-8500) CL7 Unbuffered UDIMM 240-Pin Desktop Memory Module CT25664BA1067 at Amazon.com