Hi, I have proposed a list of seven Wikimedia Hackathon 2015 projects that should be supported further:
https://phabricator.wikimedia.org/T101151
Anybody can help improving this list; this is not some sort of Academy Awards.
How to support these projects? Everything goes down to follow, comment, and contribute. Wikimania's hackathon is a good next step for those projects having the right people at the event. Also, everybody at the Wikimedia Foundation is defining quarterly team and individual goals, so you might want to consider to set a goal related to one of these projects.
Once the Wikimania & WMF goals dust settles, we will check how each project is doing and what are the appropriate next steps.