Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Since Linux.com last surveyed the community-backed open source board scene in June 2012, some projects have faded, but a number of new boards have popped up to take their place. In fact, most of our top 10 Linux or Android-ready open source single board computers (SBCs) have shipped in the last few months.
Not all the projects offer the same transparency or open governance, but at a minimum, they all provide open source Linux or Android code (often both), full schematics and other documentation, and at least an attempt at forums or other community resources.
Some projects more clearly show the hand of a single manufacturer, while several triangulate between the community project, an arms-length semiconductor vendor backer, and one or more third-party manufacturers and/or distributors. This is the classic model that supports the BeagleBone Black, with BeagleBoard.org, Texas Instruments (TI), and CircuitCo, playing their respective roles.