This java applet attempts to implement the classic "Eliza" program. It pretends to be a Rogerian psychologist. It was groundbreaking in its time, but it is ultimately a lacking AI system (that or Rogerian psychologists are complete morons, which is probably not too far from the truth). Its pretty easy to take advantage of the system. As DyRE found out, Never Go to a Rogerian Psychologist When You're On Fire.