There are many good resources available on the Internet for both the professional and home haunter.  Here are some we have found useful:

Horrorfind Banner Exchange

Halloween Exchange
Haunted Attraction Banner Exchange
Horrorfind Banner Exchange

Halloween Exchange
Haunted Attraction Banner Exchange
 
Copyright 2005-2009 Illusionator, Inc. Last updated: 19-Jan-2012 Eye Media copyright 2004-2006 LightForm Productions, Inc.
 
Copyright 2005-2014 Illusionator, Inc. Last updated: 22-Aug-2014 Eye Media copyright 2004-2006 LightForm Productions, Inc.