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
Komputerbay 2GB RAM Memory for the Lenovo Thinkpad R61 Series, T60 Series, T61 Series, X60 - Komputer Bay
2GB RAM Memory for Lenovo ThinkPad T Series T61 ( Type 7665 ) Black Diamond Memory Module DDR2 SO-DIMM 200pin PC2-5300 667MHz Upgrade - Walmart.com
CMS 8GB (2X4GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T61, T61P Ddr2 Pc5300 Sodimm - B116 at Amazon.com
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
Change RAM in Lenovo T61 in one minute - YouTube
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
8GB 2X4GB Compatible Memory for Lenovo Thinkpad T61 T61p DDR2 PC2-5300 SODIMM RAM (PARTS-QUICK Brand) at Amazon.com