General:

www.mr2.com: Goes without saying.

Mr2 Mailing List Search: Use the google search feature to search the Mr2 mailing list. An unbeatable research tool.

MR2 Classifieds: The best source for both MR2 cars and parts on the net. A great classifieds.

The MR2 Owners Club Message Board  I'll admit that I'm not much of a bulletin board fan, but nevertheless, this is where many Mr2 owners hang out these days.  While there is good info there, it is usually very hard to find as there is a great deal of separating the wheat from the chaff.  This wouldn't be much of a problem if the search function worked on the board, but it currently does not. 

Matti's Toyota Site An absolutely unbelievable archive of Toyota information mostly on engines and the parts that go with them, but also with info on, models, racing, etc..

Stephen Gunter's Main Page: Stephen has set up a page with great tech articles about Toyota vehicles.

Phil Bradshaw's 4A-GE Homepage A great site with multitudes of 4A-GE and 4A-GZE info.

Bill Sherwood's Automotive Homepage  A great site with a great deal of info on the 4A-GE and how to turn it into a monster, along with other great car articles.

The 7A-XX Engine Page Another great site with a great deal of info on the 7A and how to transform this engine from its fuel efficient stock state into a powerful enthusiast motor.

Club 4AG  An amazing site devoted to the engine we all know and love!  There is a huge wealth of info on the 4A-GE on this site.

My Classic Toyota A great archive site dedicated to pre 86 RWD Toyotas.

MKI Mr2 Club UK Based Club for the AW11
 

NA and SC:

Rob's Homepage Our friend from down under has a great deal of info on the MKI SC engine, how to get one in you car, and how to make alot of horsepower with it! The info on Mo's screamer is also on the page.  For you NA tuners, Rob also has info as well.

Steve Bagdon's page: The ring leader of the MR2 list; Steve Bagdon has set up a page with his own info.  This is the site with the highly sought after articles on transplanting a 4A-GZE into a AW11 NA.
 

Normally Aspirated:

Dave's MR2 Page: The King of NA only MKI mods, Dave A. has set up a page to give some great MKI information.  In building an almost fully prepped CSP dave has experience with many products that most of us don't.  He has put up his results here.

The Unofficial Jørn Innset Homepage - MR2: Our friend from Norway who has spent much money, time, money, trail and error, and money to get the best for his MKI.

Mark's Sink's 1987: Mark Sink's highly modded MKI.
 

Supercharged:

SC registry: Steve Hoult's famous SC registry, with other SC info.

Tommy’s MR2 Page Tommy has one of the highest prepped SCs in the world with which he uses to tear up race tracks all across Canada.

Mike Gruber's SC Another good SC page.  Mike has done a VERY nice job modding his SC.

Chris Bassett's "Super Edition" page.  Read about the rare (reported to be only 270 models) "super edition" SC model that was sold only in Japan. 

Turbo, Twincharged, and different A series combinations:

Turbo Tom's spectacular turboed AW11

Tommy Hui's Twincharger on mr2.com

J Monzon's Twincharger on mr2.com