If you have any good sources for magazines, send me an IM or email firstname.lastname@example.org with the info and I'll post it here.
Cheaper Than Dirt
Gunclip Depot Shooting and Hunting Supplies
Metalform 1911 Magazines
Natchez Shooters Supply
Wilson Combat Magazines for full sized 1911s
Wilson Combat Magazines for Officer/ Compact sized 1911s
Added a couple of other sites