DabbleDB

Collaboration Ware WebApp/ASP.

http://dabbledb.com/

reminds me of Thingamy concept a little, though this is much higher-level in smell (Framing as application vs developer Platform)

detailed review http://www.solutionwatch.com/294/a-look-at-dabble-db/

review http://itredux.com/blog/2006/03/28/office-20-directory/

Chad Fowler notes from Oct'2005: the Long Tail of app-dev. Situated Software.

2006-11-01-UdellDabbleDb

Bought by Twitter in Jun'2010

Announced Mar'2011 that it will be turned off May'2011.