Jack Aboutboul at Red Hat clued me into an interesting open-source ecommerce platform today. Called Magento, it's built by Varien and is "a feature-rich, professional open-source eCommerce solution offering merchants complete flexibility and control over the look, content, and functionality of their online store."
Put in English, Magento is an open-source solution for setting up and managing an online store. The product appears to be pretty robust already, but the roadmap looks even better.
If you need to set up an online store, why pay the six- to seven-figures to do so when you can use Magento for free and then pay when you want support going into production?
Those open sourcerors. Why won't they stay in the limited boxes/categories where the 20th-century proprietary vendors want them to remain? Marketcetera, OpenAds, etc. Darned pesky open source kids!