DDR3 1066MHZ PC3-8500 SODIMM for Apple MacBook Pro Late 2008 - 2010
APPLE MACBOOK A1278 INTEL CORE 2 DUO @ 2GHZ 2GB RAM 500GB HDD LATE 2008 | eBay
2008 MacBook Review: Better than a modern MacBook in many ways
Apple Macbook 2008 13” Intel Core 2 Duo 2.4GHz 4GB RAM 128GB SSD 10.11 El Cap | eBay
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
Transforming 2008 MacBook into MacBook Pro 2020 ($1499.00) - SSD and RAM Upgrade - YouTube
MacBook Pro Upgrade Guide
2008 MacBook Review: Better than a modern MacBook in many ways
My Late 2008 MacBook running El Capitan 10.11.6 (could use a RAM upgrade to 8GB and the HDD upgrade to an SSD to make it swifter than it is currently). : r/macbook
MacBook Air 2,1 (13-Inch, Late 2008 and Mid 2009) | iGotOffer
Mid 2008 unibody MacBook with 8gb ram, 400gb SSD, and MacOS 10.15 Catalina. I used DosDude1's patcher tool. : r/mac