links for 2008-11-25

About Product Planner

Product Planner was born out of the need to help people understand and create user flows for their web products. The idea is that by looking at examples of other successful web products, you can get a better idea of how to create your own.

Twitpay was one of several projects in development at Startup Weekend, held November 7-9 in Atlanta, Georgia.

it doesn't support transactions in the way that most people typically think about them. That means, enforcing uniqueness of one field across all documents is not safe. A classic example of this would be enforcing that a username is unique. You can check whether a username exists, and if not, create a new one. There is no guarantee