Have you seen the New Dictionary of the History of Ideas yet? Very impressive! The new edition is 6 volumes (compared with 4) and has some very topical and cognitive entries.
There are several having to do with consciousness, the philosophers among you will be pleased to note. There's a several-page entry on consciousness itself, as well as entries on Mind, the Philosophy of Mind, and Dualism.
Another interesting (if long; 13 pages!) entry is called "Visual Order to Organizing Collections". It could have a better name, but it's about using images to organize or provide information about information. Very meta. Several great (BW) photos, as you'd expect on such an entry.
Hampshire's got the new set, as do many libraries. Take a look, and be warned: you could spend LOTS of time with this one. Complete citation: Horowitz, Maryanne Cline, editor in chief. New Dictionary of the History of Ideas. 6 vols. New York: Charles Scribner's Sons, (2005). It's online via Gale's Virtual Reference Shelf, but I haven't seen that one yet.