How current is Yahoo Finance's shorting % data?

Question

http://answers.yahoo.com/question/index;_ylt=AiOsILBwyz75BF4Ljr9XX9vty6IX;_ylv=3?qid=20080531200206AAMoUWf

Answer 1

Nasdaq.com has historical data for short interest on stocks for the last 12 months.

Answer 2

I think their's is as current as it can be, which isn't that current.  I believe the shorting % data comes out about once a month.

Here is a good site for tracking unusual shorting interest in stocks:

http://www.shortsqueeze.com/