A-Tech 4GB Kit (2x2GB) RAM Memory for MacBook, MacBook Pro - PC2-5300 667MHz Ram A1261 A1260 A1181 A1229 A1226 MA896LL MA895LL MB063LL/A MB062LL/A at Amazon.com
MacBook Core 2 Duo RAM Replacement - iFixit Repair Guide
CMS 2GB (1X2GB) DDR2 5300 667MHZ NON ECC SODIMM Memory Ram Compatible with Apple Macbook Pro 13.3" 2.2Ghz MB062Ll/B A1181, 2200 - A38 - Walmart.com
Apple MacBook A1181 13 inch Laptop - 2GB RAM, 160GB Hard Drive (mid-2009) 885909337972 | eBay
Apple MacBook 13” A1181 2006 1GB RAM/120GB HDD/charger- needs repair
APPLE MACBOOK A1181 13,3" 2 GB RAM 80 GB" economico EUR 23,22 - PicClick IT
Apple Macbook 13" Laptop | A1181 | 2.0GHz | 256GB SSD | 4GB RAM | Big Sur | B+!! | eBay
Got my A1181 09' MacBook 5,2 running a 500GB SSD, 4GB Ram, and pushed it from the max OS of El Capitan to Mojave with a patched install USB I put together (:
Apple Macbook A1181
How to upgrade RAM in your 13" Apple Macbook - YouTube