Back in 2006, William M Arkin, a Washington Post blogger, published a list of hundreds of terms that were allegedly associated with NSA projects.
Along with the list, he wrote:

" I could write volumes about the research efforts and the software programs and tools used to process the mountains of information the NSA and other agencies ingest. No doubt over the coming days and weeks, more will be written. For today though, I provide a pointer, based upon my research, of software, tools and intelligence databases that I have been able to identify in government documents relating to data mining, link analysis, and ingestion, digestion, and distribution of intelligence. My hope would be that other journalists and researchers will follow the leads."

Pinwale, though, is actually an unclassified proprietary term used to refer to advanced data-mining software that the government uses. Contractors who do SIGINT mining work often include a familiarity with Pinwale as a prerequesite for certain jobs. To keep things straight, the American public now has confirmation of at least four separate NSA domestic surveillance programs. The first is the Terrorist Surveillance Program, which involves the monitoring of telephone calls. The second is "Stellar Wind," a code name for a program that involves meta-data mining. The third is a program that keeps tabs on all the information that flows through telecom hubs under the control of U.S. companies and within the U.S. The fourth is the Pinwale e-mail exploitation.

The National Security Agency is facing renewed scrutiny over the extent of its domestic surveillance program, with critics in Congress saying its recent intercepts of the private telephone calls and e-mail messages of Americans are broader than previously acknowledged, current and former officials said.

The agency’s monitoring of domestic e-mail messages, in particular, has posed longstanding legal and logistical difficulties, the officials said.