UPDATE: Rob Conery posted a great overview of using MongoDB at Tekpub. The InfoQ post also stirred up some discussion on Hacker News.
I had the opportunity over the past week to talk with Rob Conery (ex-Microsoft) and James Avery about TekPub, one my favorite training sites on the web, for a detailed case study for InfoQ.
The interview was particularly interesting as it covers Tekpub moving from ASP.NET MVC to Ruby on Rails and ASP.NET MVC is the subject of a book Rob Conery co-authored. This says a lot about the position Microsoft puts small companies in when trying to build a product. It also says a lot about the advantages open source gives to these small companies.
As often is the case, cost is a big factor. Please give it a read. The interview is up now – Architecting TekPub – Moving from ASP.NET MVC to Ruby on Rails.