document updated 18 years ago, on Oct 18, 2006
Articles that show the general breadth of Wikipedia (or, at times, the lower limits of notability)
http://en.wikipedia.org/wiki/Category:California_state_highways
http://en.wikipedia.org/wiki/Category:Shopping_malls_in_the_United_States
http://en.wikipedia.org/wiki/Category:Schools_in_the_United_States
http://en.wikipedia.org/wiki/Category:Lists_of_postal_codes
http://en.wikipedia.org/wiki/SCSI_command
http://en.wikipedia.org/wiki/Category:X86_instructions
http://en.wikipedia.org/wiki/Hello_world (just seems somewhat listcrufty to me, but maybe I'm wrong)
http://en.wikipedia.org/wiki/SQL#SQL_keywords
http://en.wikipedia.org/wiki/Category:C_standard_library (wow)
http://en.wikipedia.org/wiki/Category:New_Testament_verses
http://en.wikipedia.org/wiki/Category:Episode_lists (wow wow)
http://en.wikipedia.org/wiki/Category:Star_Wars (a whole sub-wiki unto itself)
http://en.wikipedia.org/wiki/Category:Star_Trek_episode_lists (WOW)
http://en.wikipedia.org/w/index.php?title=Blogebrity&oldid=32811217
http://en.wikipedia.org/wiki/List_of_people_by_name
http://en.wikipedia.org/wiki/Category:Given_names
http://en.wikipedia.org/wiki/Category:Surnames
http://en.wikipedia.org/wiki/Category:Monster_trucks
http://en.wikipedia.org/wiki/Category:Breakfast_cereals
http://en.wikipedia.org/wiki/Category:O%27Reilly_books
http://en.wikipedia.org/wiki/Category:Canon_EF_lenses
http://en.wikipedia.org/wiki/Category:Cameras_by_type (most subcats)
http://en.wikipedia.org/wiki/Category:Software_stubs (definitely some less-than-notable articles)