I actually had some fun reading about maze algorithms some time ago. Here are two good links:

http://www.astrolog.org/labyrnth/algrithm.htm

http://weblog.jamisbuck.org/2011/2/7/maze-generation-algorit...

The first link is interesting because it describes some maze toponomy (types and characteristics of mazes) The second has a lot of algorithm implementations with nice demos.

Fun stuff :)