iMac | 2.4 GHz Core 2 Duo | 24 Inch | Aluminium - Techable.com
How to Upgrade iMac RAM (20" and 24" Aluminum): EveryMac.com
CMS 2GB (1X2GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core 2 Duo 2.8 24-Inch (Early 2008) - A40 at Amazon.com
Install memory in an iMac - Apple Support
Timetec 8GB KIT(2x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 for Mac Book,
Timetec 8GB KIT(2x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 for Mac Book, Mac Book Pro, iMac, Mac Mini (Late 2008, Early/Mid/Late 2009, Mid 2010) SODIMM Memory MAC RAM Upgrade
Install memory in an iMac - Apple Support
Apple iMac (2008 Edition) review: Apple iMac (2008 Edition) - CNET
2GB DDR2 800MHz RAM Memory Upgrade for Apple iMac Core 2 Duo 24-inch (Early 2008) (PARTS-QUICK) - Walmart.com
Apple iMac Memory - Intel Core 2 Duo 2.8GHz 24" MB325LL/A - DMS