tedster - 7:18 am on Jun 10, 2008 (gmt 0)

One step that can help is if you get new backlinks from quality sites. Also make sure that your titles and meta-descriptions are unique and specific to the page they appear on.

Make sure that you have no technical errors creating more than one URL for the same content. Googlebot crawls with a budget, and if it spends part of that budget downloading duplicate content from different URLs on your site, then it has less budget for crawling the rest of your URLs.