App Engine Guy: How-to: Full-text search in Google App Engine

App Engine Guy: How-to: Full-text search in Google App Engine: "The Google App Engine API has a very primitive implementation of a full-text index for the datastore, hidden away in google.appengine.ext.search. (There is basically no documentation of it, so you have to read the source, lazy boy) You use it by creating your models from search.SearchableModel, instead of the usual db.Model."