Nick and Ethan are both founders of companies funded by Y Combinator.

Nick attended Y-Combinator in the summer of 2007, where he received seed funding for Reble, the start-up he founded.

Daniel met Nick at Y-Combinator in the summer of 2007.

Daniel is one of the co-founders of the Biographicon, an open site for collaborative biographies that mixes social networks with wikis.