Cheap and Easy Mac Upgrades
The official Apple support site contains a large technical library with specs for all Macs.
Macworld Magazine is the official Mac information source on the Internet.
Accelerate Your Mac is a great all-purpose info site for upgrades, reviews, and discussions of new products.
Newertechnology is a manufacturer of various Mac upgrades.
Cyberian Outpost is an online store featuring both Mac and PC products.
The Ultimate Macintosh Site is a great source for links to other information.
TechWorks is an Austin company specializing in Mac upgrades. - J.A.