Newegg.com has the G.SKILL 8GB (2 x 4GB) 204-Pin DDR3 SO-DIMM DDR3 1333 (PC3 10666) Laptop Memory Model F3-10666CL9D-8GBSQ for a good price.

Google Products Price : $82.99 ~ $138.07 Shipped

1. Newegg Price : $64.99 Shipped