How to Upgrade Memory in a Late 2009 21.5-inch or 27-inch iMac - YouTube
Install memory in an iMac - Apple Support
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core 2 Duo 3.06 21.5-Inch (Late 2009) - A35 at Amazon.com
iMac Intel 24" EMC 2267 (Early 2009) Memory Maxxer RAM Upgrade Kit - iFixit Store
iMac 27-Inch "Core 2 Duo" 3.06 (Late 2009) Specs (Late 2009, MB952LL/A, iMac10,1, A1312, 2309): EveryMac.com
Install memory in an iMac - Apple Support
Apple iMac (27-inch, unibody, 2009) review: Apple iMac (27-inch, unibody, 2009) - CNET
Amazon.com: OWC 16GB (4 x 4GB) PC8500 DDR3 1066MHz SO-DIMMs Memory Compatible with iMac 21.5" and 27" (October/2009) : Everything Else
Install memory in an iMac - Apple Support
How to Upgrade the RAM in Your iMac
8GB -2x4GB Memory Ram Upgrade 20" Apple iMac 9.1 2.66GHz Core 2 Duo Early 2009 | eBay
iMac RAM Memory Installation 2009 2010 2011 21 5" Apple Dollars #13 - YouTube
iMac (2009) RAM & Storage Upgrades
iMac 21.5-Inch "Core 2 Duo" 3.06 (Late 2009) Specs (Late 2009, MB950LL/A*, iMac10,1, A1311, 2308): EveryMac.com
iMac (2007-2009) Memory Installation Video - YouTube
16GB Memory Upgrade Kit 2009 Apple Apple iMac
Install memory in an iMac - Apple Support
A-Tech 16GB (4x4GB) RAM for Apple iMac (Mid 2010, Mid 2011, Late 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
Early 2009 model iMac Computer, DDR3 8GB (2x4GB) RAM Replacement - YouTube
Benefits from RAM upgrade to Late 2009 iMac | MacRumors Forums
iMac 21.5" Late 2009 (10,1) - CPU Upgrade E8600 | MacRumors Forums
Memory Upgrades for Apple iMac 2011 Up to 32GB
