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
KOMPUTERBAY 2GB DDR2 1066MHz PC2-8500 DDR2 1066 (240 PIN) DIMM Desktop Memory with Heatspreaders at Amazon.com
2GB Memory for Lenovo ThinkCentre M58 7354, 7355, 7360-xxx DDR3 PC3-8500U 1066 MHz DIMM RAM (MemoryMasters) at Amazon.com
A-Tech for Apple 4GB Kit (2X 2GB) DDR3 1067MHz / 1066MHz PC3-8500 SODIMM Memory RAM
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
MemoryMasters 4GB (2 X 2GB) DDR2 DIMM (240 pin) 1066MHz PC2-8500 Desktop RAM with Red Heatspreaders for Extra Cooling CL 5-7-7-25 at Amazon.com
TECMIYO DDR2 PC2-6400 DDR2 800 4GB Kit (2x2GB) Non ECC Unbuffered 1.8V CL6 200-Pin Sodimm Laptop Memory Module at Amazon.com