If you’re not familiar with OpenSourceCMS then let me be the first to introduce you. OSCMS is a place where you can try pretty much any of the “major” open source applications including CMS, blogs, wikis, forums, ecommerce, image galleries, and more.
They even give you back admin access to try that out as well.
I’ve used this site extensively to test applications for various sites that I’m developing. What’s nice is that they continually re-install and refresh the builds so that if someone messes with it it’ll be restored for new testing.
Check it out and go find yourself some good open source goodness.
cool thanks!