If you’ve ever wanted a free/open-source software package with similar features to an expensive commercial program but didn’t have the time or energy to look, Open Source Alternative is a great resource. Dozens of popular commercial programs are indexed by category and searchable. Each commercial software entry is accompanied by one or more open-source projects that provides similar functionality for free. While many of the pairings are fairly well known (PhotoShop/GIMP for instance), there are plenty of less-well-known projects, with more being added regularly. Practically every time I’ve visited I’ve found at least one useful open source project I hadn’t known of before.