I've started the process of open-sourcing some of the code we've developed for Stinky Teddy. Eventually, we'll open source everything except for the ranking algorithms and intelligence. Stinky Teddy uses multiple search APIs, so a lot of effort went into normalizing multiple search APIs. Our first stab at open-sourcing is a simple Java class that converts multiple string representations of the date (used by various search APIs) into the java.util.Date format and also the date string format used by Lucene (org.apache.lucene.document.DateTools.dateToString()).
I'm using github to host the code: Stinkteddy @ github.