I have listed on this page some of my favorite references concerning all things AI related. Included are links on chat-bots, LUI/NLP, robotics, and of course the "Singularity", which includes the link to the essay that first dropped my jaw and opened my eyes, "Staring Into The Singularity 1.2.5" by Eliezer S. Yudkowsky, and which led me to Verner Vinge's paper from 1993, "Vernor Vinge on the Singularity".
I hope you enjoy them.