GitNews Web - Trending repositories from GitHub, HackerNews & Reddit
SmokeD - The intelligent fire camera for homeowners
LibHunt - LibHunt tracks mentions of software libraries on relevant social networks. Based on that data, you can find the most popular projects and their alternatives.
Honeywell Lyric - think Nest's infamous Learning Thermostat, but smarter
Ruby Toolbox - Explore and compare open source Ruby libraries
Netatmo - Control your heating wherever you are