Dear Apple: Please use these ideas to modernize the Mac | Ars Technica
Mac Pro 3.1 Memory | Mac DDR2 RAM | 2008 Mac Pro RAM | MacMemory.com
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
15-inch MacBook Pro Late 2008 Memory Installation Video - YouTube
MacBook Pro | Core 2 Duo 2.5 GHz | 15 Inch | Early 2008 - Techable.com
Timetec 8GB KIT(2x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 for Mac Book,
32GB (8x4GB) Memory Ram Upgrade Apple Mac Pro 3.1 2008 667Mhz PC2-5300 Big HS | eBay
MacBook Pro 15" Unibody Late 2008 and Early 2009 RAM Replacement - iFixit Repair Guide