Apple iMac Mac OS X 10.11, El Capitan 2008 Apple Desktops & All-In-One Computers for sale | eBay
parts-quick 6GB (4GB + 2GB) Memory for Apple MacBook Pro, iMac 2007 2008 Compatible PC2-5300 667MHz DDR2 SODIMM at Amazon.com
6GB Memory Upgrade for 2009 MacBook and Early 2008 iMac
Maximum RAM iMac early 2008 | MacRumors Forums
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
Install memory in an iMac - Apple Support
Apple upgrades its 27" iMac with 10-gen Intel CPUs, new AMD GPUs and doubles RAM capacity: Digital Photography Review
SOLD 24" iMac 2008 3.06GHz 6GB - now just £99 or even £80! - theFretBoard
Memory Upgrades for Apple iMac 2008 - Up to 6GB
Mac Pro 2 x Quad Core 2.8Ghz 6GB ram 500TB Sata - Inizi 2008
20″ iMac (Early 2008) | Low End Mac
OS X El Capitan on an Older Mac: What You Should Know
OWC 6GB (2GB + 4GB) PC8500 DDR3 1066MHz SO-DIMMs Memory Compatible with Late 2008, Early 2009, Early 2010 MacBook, MacBook Pro Unibody Models, 2009/2010 Mac Mini, 2009 iMac Models at Amazon.com