MongoDB Text Search Tutorial by Alex Popescu.
From the post:
Today is the day of the experimental MongoDB text search feature. Tobias Trelle continues his posts about this feature providing some examples for query syntax (negation, phrase search)—according to the previous post even more advanced queries should be supported, filtering and projections, multiple text fields indexing, and adding details about the stemming solution used (Snowball).
Alex also has a list of his posts on the text search feature for MongoDB.