Sitecore Link project gained a list of additional Sitecore modules and implementations as well as their authors. With time, I tend to make it something more useful than Marketplace, so withing first quarter of 2018 will be populating it with the data and add features.
With an initial starting set of data for the beginning, it is available at:
Modules: http://Sitecore.Link/Modules
Authors: http://Sitecore.Link/Authors