SIDtoday is called the internal newsletter for the most important part of the NSA, the Signals Intelligence Directorate.
Today's SIDtoday release from Intercept is one of the largest, as it consists of 328 documents that you can find at the end of the publication.
Release of press releases contains important data covering the first half of 2006. They concern the Iranian influence in Iraq, the attitudes of NSA officials in the countries that act, and much more.
Those who are interested in older SIDtoday (containing many different themes) can throw one look at earlier releases.