This showcase is maintained by GHI Electronics. If you have a project that you think is worth showing off, post about it in our forums. If the project is creative and the community seem interested, it may make it to the community showcase.
The showcase can be found on the forum, sorted by activity
http://www.ghielectronics.com/community/forum/board?id=25
and on the main website, sorted by date posted
http://ghielectronics.com/community/showcase