Forum Moderators: rogerd
One thing that is different is that other sites can help you grow. For instance, on blogs I'll often add links to Digg, My Yahoo, etc. This is helping promote the blog, but it's also helping the exposure of those bookmarking/tagging sites.
Perhaps you can identify some shopping sites that would do some cross promotion with you - add your links to their pages in return for some kind of promotion on your site.