www.echofans.net 

A very good discussion forum on various aspects of ECHO ownership with posts ranging from maintenance to modifications for Toyota ECHOs

http://autos.groups.yahoo.com/group/toyotaechoownersclub/

The Toyota Owners club is a Yahoo based group which has a discussion forum, photo section and general information on the Toyota ECHO.

http://www.tiretrends.com

A great Canadian on-line wheel and tire vendor with many top of the line makes

http://www.tirerack.com

Want to see what your ECHO (or other car) would look like with different wheels then check out this site and their really neat application.