Here are my links to the best MG (and other "Little British Cars") Links on the WWW:
Motorhead
The "world-reknowned" British Car shop: Motorhead, Ltd. Formerly located in Arlington, VA, and now relocated in Farifax, VA, this shop has been specializing in LBC's for well over twenty years. Check out this link for Parts, great technical info and advice on owning your Little British Car!
"When it's British, and it's broken..."
The MGB Experience
Skye Poier's page dedicated to his MGB trials and tribulations; He has many, MANY links to great resources on the WWW for MG's; As a matter of fact, if his was the only site I listed here, it could be argued that my "links" page was complete! Skye has laid out his site cleanly and logically, and as you can see, I admire his site so much I have emulated it here on my homepage!
Moss Motors
Another great parts resource for LBCs in general, plus some good tips. Their entire catalog is viewable here via Adobe Acrobat.
MG Cars Enthusiast Club
A great site for all makes of MG's, including lots of history, photos, classifieds and clubs to join.
MGB Net
A good site with links to more resources, desktop themes and other fun MG stuff...
MG (UK)
MG lives on! The official homepage of the Morris Garage, and info on the new MGF!
More links will be added as I find good resouces out there on the WWW. Check back if you care!