Classic Computer Mailing list - THE mailing list for classic computer collectors.
York University Computer Museum - Dedicated to documenting, preserving and showcasing Canadian contributions to the computing industry.
Rob Krtens Museum - A nice collection of DEC (PDP) series machines, with notes on the restoration process. Also some interesting old desktop calculators.
Old-Computers.com - A very good site for general information on early computer models.
DigiBarn - Bruce Damers 'Big Red Barn' full of interesting computer memorabilia,Back to Daves Old Computers