For online sites you can do article marketing... It works to bring in both highly relevant traffic that is pre-qualified and as a bonus it will result in links to your site which naturally help ranking. Build a list of ezines, newsletters and topical sites in the travel market that accept article submissions and start sending them good quality articles once a week. One great article submission tool for doing this is: www.artemispro.com If your new to article marketing I suggest you checkout the following links: www.articlesintotraffic.com http://www.thekaizenbusiness.com/?p=174