iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
Apple iMac 2009 (Late) Core 2 Duo 3.06Ghz 21.5-inch (iMac 10,1) SSD ,Ram & OSX Upgrades - ZD Laptop Service Centre
Late 2009 21.5" inch iMac A1311 Disassembly RAM SSD Hard Drive Upgrade Repair Loud Fan Fix - YouTube
iMac Intel 21.5" EMC 2308 (Late 2009) Memory Maxxer RAM Upgrade Kit
16GB 4x 4GB Memory Ram For Apple iMac 21.5-in & 27-in Late 2009 - Walmart.com
8GB -2x4GB Memory Ram Upgrade 21.5" Apple iMac 10.1 3.06GHz Core2Duo Late 2009 | eBay
Install memory in an iMac - Apple Support
Apple iMac 21.5" intel® Core 2 Duo 3.06GHz Late 2009 (Ricondizionato) - Smart Generation
Memory RAM Upgrade for Apple iMac 21.5-inch Late 2009 4GB DDR3 SODIMM | eBay
Timetec Hynix IC 32GB KIT(4x8GB) Compatible for Apple 27 inch Mid 2010 21.5/27 inch Mid 2011 iMac DDR3 1333MHz PC3-10600 CL9 204 Pin SODIMM Upgrade for iMac 11,3 iMac 12,1 iMac 12, 2 (32GB KIT(4x8GB)) - Newegg.com
Install memory in an iMac - Apple Support
A-Tech 16GB (4 x 4GB) PC3-8500 DDR3 1066/1067 MHz RAM for iMac Late 2009 21.5-inch / 27-inch | 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
A-Tech for Apple 2GB DDR3 1067MHz / 1066MHz PC3-8500 SODIMM iMac (Early/Mid/Late 2009, 20/24 inch, 21.5/27 inch), Mac Mini (Early/Late 2009 Mid 2010) Memory RAM Upgrade Module at Amazon.com
Install memory in an iMac - Apple Support
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
Install memory in an iMac - Apple Support
Timetec 8GB KIT(2x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 for Mac Book,
iMac Intel 21.5" EMC 2428 RAM Replacement - iFixit Repair Guide
Install memory in an iMac - Apple Support
Memory Upgrades for Apple iMac 2009 - Up to 32GB
iMac RAM Memory Installation 2009 2010 2011 21 5" Apple Dollars #13 - YouTube
Install memory in an iMac - Apple Support
