G.Skill 4GB DDR2 PC2-8500 1066MHz TT (PI) Black Series (5-5-5-15) Dual Channel kit at Amazon.com
4GB KIT (2 x 2GB) for Dell Vostro 230 230s. DIMM DDR3 Non-ECC PC3-8500 1066MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
MemoryMasters 8GB (4 X 2GB) DDR2 DIMM (240 pin) 1066MHZ PC2-8500 8 GB KIT with Fin Heatspreaders for Extra Cooling CL 5 at Amazon.com
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