A-Tech 8GB (2 x 4GB) RAM for Lenovo THINKPAD T61P | DDR2 667MHz SODIMM PC2-5300 200-Pin Non-ECC Memory Upgrade Kit at Amazon.com
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
2GB Memory for Lenovo ThinkPad T60, T60p, T61, T61p DDR2 PC2-5300 SODIMM RAM (PARTS-QUICK Brand) at Amazon.com