http://www.macnn.com/articles/02/08/06/dp.autochanger/
DP Autochanger 2.0 manages desktop picture
updated 10:00 am EDT, Tue August 6, 2002
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DP Autochanger 2.0 is an update to the $5 utility for OS X that automatically rotates the deskto: "it is possible to change DP Autochanger’s settings without using a separate program. It retains the ability to change pictures automatically and, as before, those pictures can come from either the file system or from the web."
