Free and Open Source Software (FOSS), or at least free under one or another permissive licenselicense, . The following are portals and directories. Be persistent – and if you get stuck, shout out for help through our “Contact” page.
Wikipedia Free Software Portal.
Wikipedia: not everything makes it into the Free Software Portal, so try searching for a list of, for instance, “free project management software,” or search the name of an application like “Microsoft Project,” and see what categories the app falls into.
OStatic. “Find. Elaborate. Collaborate.”
Osalt.com “Open Source As Alternative.”
Social Source Commons. Software Tools for nonprofits.
Launchpad.net – a recent discovery for us – describes itself this way:
23,515 projects, 795,912 bugs, 413,583 branches, 1,730,914 translations, 161,480 answers, 36,291 blueprints, and counting.