I watched an interesting talk yesterday by Garry Tan at TechCrunch Early Stage where I learned about your company's "wedge."<p>The thin edge of the wedge is a small and specific problem/solution you're working on now. The thick side of the wedge is where you can grow into eventually.<p>He gave the example of Airbnb. Airbnb started out at a thin wedge, where in order to host you needed an air bed and to provide breakfast to your guests.<p>And now at the thicker side of the wedge they have all sorts of hosting experiences.<p>For me, the thin edge of the wedge is private scratch notes. The thick edge is all of your notes/knowledge use cases.<p>What's your wedge? What are other wedges you've seen?