About three years ago I built and launched Domain Pigeon, a web app that listed available web 2.0-style domain names each day [1]. The site did fairly well, but it was my first foray into web apps and I lacked the experience to grow it into something bigger. Eventually I moved on to other projects and closed Domain Pigeon down, which has been one of my biggest regrets.
My original vision for Domain Pigeon is what Lean Domain Search now is: you type in a search phrase and the app would pair it with hundreds (in this case 1,000) keywords to generate domain names and show you which were available. I lacked the technical skills back then to do bulk domain search quickly, which is why I settled on simply generating web 2.0-style domain names. Fast forward a few years and I've picked up those skills so I decided to take some time off my other apps and finally build this tool.
Hope you guys like it. Let me know how I can make it better.
[1] http://www.hnsearch.com/search#request/all&q=domain+pige...