AnswerBus Question Answering System
A Web-based open-domain question answering system. It uses technologies in information retrieval, artificial intelligence, natural language processing. It accepts natural language questions provides answers in English in seconds. http://www.answerbus.com/
Prime Time Freeware for AI
Snapshot of Carnegie Mellon University Artificial Intelligence Repository: CMU AIR. Co-sponsored by CMU and Prime Time Freeware, the AIR is the world's largest collection of AI-related freeware. http://www.ptf.com/ptf/products/AI/
Project Smiley
An online artificial intelligence which interacts with users. Knowledge is gained through teachers who interact with Smiley via e-mail. http://www.mtech.on.ca/sw
The CAPTCHA Project
Completely Automated Public Turing Test to Tell Computers and Humans Apart. Includes demonstrations, research papers, and news. http://www.captcha.net/