I4U NEWS reviews the Other World Computing 2GB Apple MacBook SODIMM DDR2 RAM Kit.
A quote from the article:
OWC 2GB Apple MacBook SODIMM DDR2 RAM Kit Review
After installing the OWC 2GB (1024MB x 2) Matched Pair DDR2 PC2-5300 667MHz DIMMs the computer RAM much faster under VMware. I could change mailboxes in outlook with lag of only a second at most. Running Photoshop Elements was also faster and the entire system in general ran smoother.
OWC 2GB Apple MacBook SODIMM DDR2 RAM Kit Review