There is a great article on non-SQL databases in the June issue of Dr. Dobb's Digest. It basically surveys the NoSQL movement, something that I quite frankly had no idea existed before I read about it this past weekend: non-relational databases designed to handle terrabytes of data across multiple geographically divers systems. I'm far from a database expert, but I've dealt with them enough so that I could follow the article.
I'm bringing this up today because it dovetails in with a post I wrote almost a year ago. The point I was making back then was that, with memory and computing so cheap, large amounts of data and statistics would become an increasingly larger part of a test engineer's job. The Dr. Dobb's article complements this idea by describing the tools being developed to deal with this data.