The DOSUG team would be happy to help you get your open positions listed on the Denver Open Source Users Group site.
Just forward the job in the body of an email to denveropensourcejobs@yahoogroups.com. The email Title becomes the page-section title on the web site, and the body of the email becomes the body of the job post, so format it carefully and trim off any footers you don't want in the job post.
Once one of us at DOSUG approves them (usually a couple of hours), it posts to the jobs email list, posts to the web site, and posts to an RSS feed.