Their latest effort is to convert their large library into MP3s. So far, they have posted hundreds of free MP3s online. Check out these speakers and series. They should keep one busy for a while.
I plan on starting with Cornelius Van Til's "Philosophy and Apologetics" series as well as a debate over baptism between Robert Strimple and Fred Malone. Great stuff! If only these files had better sound quality. Regardless, there is a ton of worthwhile material here. I suggest checking it out.