A-Tech for Apple 2GB DDR3 1067MHz / 1066MHz PC3-8500 SODIMM Memory RAM Module for MacBook, MacBook Pro, iMac, Mac Mini - (Late 2008, Early 2009, Mid 2009, Late 2009, Mid 2010) Models at Amazon.com
iMac | 2.0 GHz Core 2 Duo | 20 Inch | Mid 2009 - Techable.com
iMac (2009) RAM & Storage Upgrades
iMac (2009) RAM & Storage Upgrades
Maximum RAM iMac early 2008 | MacRumors Forums
how to upgrade iMac early 2009 SSD and RAM - full class - YouTube
iMac 24 inch Core 2 Duo early 2009 No hard drive | eBay
iMac 24" 2.93GHz (Early 2009) | mac of all trades
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
Apple iMac 20-inch 2.66GHz Core 2 Duo (Early 2009) MB417LL/A – Interactive Electronics CC