An email I received from shortsqueeze.com president Dylan Wetherill last August:

ShortSqueeze.com is more than short interest data - we help you custom
find stocks with the "most" short interest.

Here is a link with the scheduled short interest release dates:
http://www.shortsqueeze.com/data-release.php

Here is also a link with an overview of the Short Squeeze trading
methodology:
http://www.shortsqueeze.com/tour.php

For a limited time we are offering a 50% discount off both monthly and
annual membership!
http://www.shortsqueeze.com/Sign-Up.php

The World's best traders and fund managers have long understood the power
that short interest can play on price moves within the stock market. Our
research is designed to help you find powerful opportunities - both long
and short - and gain from the timing of dramatic changes in stock price.
Short Squeeze™ provides our members with an exclusive edge in the market.

Best Regards,
Dylan