A-Tech for Apple 6GB Kit (1x2GB 1x4GB) DDR2 667MHz PC2-5300 200-pin SODIMM for MacBook (Late 2007, Early 2008, Early 2009), MacBook Pro (Mid 2007, Early 2008), iMac (Mid 2007) - Memory RAM Upgrade at Amazon.com
8GB (4GBx2) Team High Performance Memory RAM Upgrade for iMac “Core 2 Duo” 2.66 20-Inch (Early 2008) MB324LL/A iMac 8,1. The Memory Kit Comes with Life Time Warranty. at Amazon.com
Install memory in an iMac - Apple Support (NZ)
CMS 6GB (1X4GB) & (1X2GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core 2 Duo 2.4 20-Inch Early 2008 - B117 at Amazon.com
A-Tech for Apple 4GB Kit (2X 2GB) DDR3 1067MHz / 1066MHz PC3-8500 SODIMM Memory RAM
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
4GB -2x2GB Memory Ram Upgrade 20" Apple iMac-8.1 2.66GHz Core 2 Duo Early 2008 | eBay
apple-history.com / iMac (Early 2008)
Maximum RAM iMac early 2008 | MacRumors Forums
How I kept my iMac running for a decade | Cult of Mac
iMac Memory for Model 8.1 | DDR2-800MHz |4GB | MacMemory.com
How to Upgrade/Install Memory in a 21.5-inch iMac (Late 2012– Mid 2014) iMac14,1 iMac14,3 - YouTube
how to Install from 2gb to 6gb gig Ram in 2008 Imac MAC 2.4 Ghz core Duo 2 Intel chip upgrade memory - YouTube
iMac Intel 20" Early 2008 EMC 2210 - used original spareparts for Macs
Memory Upgrades for Apple iMac 2008 - Up to 6GB
Install memory in an iMac - Apple Support
32GB Memory Upgrade for Early 2008 Apple Mac Pro Tower
How to Upgrade iMac Hard Drive (2007, 2008, 2009): EveryMac.com
Upgrading my Early-2008, 24-inch iMac with an SSD - Analog Senses
CMS 6GB (1X4GB) & (1X2GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core 2 Duo 2.4 20-Inch Early 2008 - B117 at Amazon.com