My team built a spin off project to create an office directory / floor plan for your small business / co-working space. http://www.floorplan.io/
Tech-stack wise it's not all that interesting, but we've seen it help a lot of small companies on-board people / meet their coworkers more easily, so that's been fun.
What a great idea - I wish every employer did this. A secret of mine : I always carry a notebook at work, when I start a new job I have made a habit of sketching the floor plan myself and labeling it with names and positions of the people I meet. This has helped me tremendously... I gotta say this seems like a tool that businesses NEED to make new hires more comfortable.
Tech-stack wise it's not all that interesting, but we've seen it help a lot of small companies on-board people / meet their coworkers more easily, so that's been fun.