Some of the websites for wedding gowns are:
http://www.sidneyscloset.com
http://www.davidsbridal.com
http://www.ebay.com
http://www.theknot.com
http://www.alfredangelo.com
http://www.Vintagewedding.com
http://www.onewed.com/dresses
http://www.brides.com
http://www.weddingdresses.com
http://www.bridalpromdress.com
http://www.houseofbrides.com
http://www.weddingwire.com
http://www.bridepower.com
http://www.usabride.com
http://www.weddingsolutions.com
http://www.thebridalshop.com
http://www.wedalert.com
http://www.weddingretailer.com
http://www.edenbridals.com
http://www.thebridalworld.com