www.jdmpartz.com
www.optauto.com (I'm a dealer)
www.tornactive.com (has some JDM stuff and is a board sponsor)
www.shopresponse.com
www.silviashop.com (can get Civic stuff from time to time - used JDM stuff)
www.ebay.com (I've gotten some pretty good JDM stuff out there)
www.jdmhondaparts.com (pricey, but good stuff)
If I think of anymore I'll post them up.