http://stalked.0catch.com Bakies Site.
http://bmpd.com BMP design. Misc e21 parts.
http://www.2002parts.com Remanufactured Recaro seats, diffs.. Pricey.
http://www.bmw320i.com Great Site... They gave me a bunch of stickers. Don't miss the new forum section!
http://www.bimmerboys.com Good stuff about two guys, e30 m3, e21 with full details on late model motor conversion!
http://www.e21bmw.net THIS is the shit, more e21 info than anywhere on the net. Great Resource.
http://www.racetep.com TEP offers a disgusting amount of performance parts e21's. Famous for their "Ultimate strut brace".
http://www.shox.com Great deals on Suspension parts.
http://www.bmwcca.com the BMW car club of America. Awesome resource for tech info, and old roundel's.
http://www.bavarianautosport.com High prices (DOUBLE ANYWHERE ELSE!!) But they have same day shipping (orders get to me the day after for the flat fee, and the customer service is great) This is the premiere bmw catalog.
http://www.alloembmwparts.com Generic parts catalog front end thing. works alright.
http://www.kormanfastbmw.com/ Kormann fast bmw... another awesome bmw tuner. They have lots of parts for your e21.
http://www.dinanbmw.com Dinan BMW, the premiere modern bmw tuner.
http://www.theeurodepot.com The Eurodepot
http://www.vacmotorsports.com believe it or not, they have carbon fiber parts for e21's!
http://www.wallothnesch.com/ Great classic bmw catalog. Plenty of euro e21 parts.
http://www.roadfly.org Great e21 newsgroup here. Good stuff.
http://www.YourBimmer.com International BMW club.
http://autos.groups.yahoo.com/group/BMW_E21_Digest/ E21 digest. The Original and best newsgroup for e21's. Fear.
http://www.theeurodepot.com Awesome prices on used parts and stuff.. decently local in New Hampshire.