Corsair CMSA4GX3M1A1066C7 Apple Certified 4GB (1x4GB) DDR3 1066 MHz (PC3 8500) Laptop Memory 1.5V at Amazon.com
4GB (2x2GB) DDR3-1066MHZ PC3-8500 2Rx8 SODIMM Laptop Memory by NEMIX RAM at Amazon.com
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 : Everything Else
16GB (2x8GB) DDR3-1066MHZ PC3-8500 2Rx8 SODIMM Laptop Memory by NEMIX RAM at Amazon.com
PC3-8500S DDR3 1066 8GB Kit (2x4GB) 1067MHz 1066MHz Sodimm RAM Compatible with Late 2008, Early/Mid/Late 2009, Mid 2010 MacBook, MacBook Pro, iMac, Mac Mini
Amazon.com: 8GB 2 X 4GB DDR3 PC3-8500 1066MHz SODIMM Memory RAM for Apple iMac Intel Core 2 Duo 20" inch 24" inch (Early 2009) Equivalent to MC016G/A (PARTS-QUICK BRAND) : Electronics
Crucial 4GB DDR3/DDR3L 1066 MT/s (PC3-8500) SODIMM 204-Pin Memory For Mac - CT4G3S1067M