Computer Museum History Center,
Focuses on "post-WW2 electronic computing, but it also maintains a representative
collection of objects from earlier eras." History of computing timeline,
with photos, covers 1945-1990(choose a year or a topic area). Events include
a chart of current and past events, some linked to transcripts and/or media
streams. You will need RealPlayer.
National Signs of the Times museum,
Devoted to "the history of the sign industry and its significant contribution
to commerce and the American landscape," this collection of exhibits reminds
us of the neon past of Philadelphia, vintage fast food signs, the murals
of New York City over 100 years, and more.