IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
Lenovo ThinkPad R61 14" Laptop For Parts No Keyboard/HDD/RAM/Charger JR | eBay
Lenovo Thinkpad R61 Upgrades | IMNC - YouTube
2GB Memory RAM Upgrade for the Lenovo Thinkpad R61 Series, T60 Series, T61 Series, X60 Series and X61 Series Laptops (DDR2-667, PC2-5300, SODIMM) at Amazon.com
Lenovo Thinkpad T61 15.6" Core 2 Duo 2.10GHz 2GB RAM 160GB BLUETOOTH 1680×1050 – ASA College: Florida