Post date: 08-Dec-2008 11:20:21
The gPowered blog has a solution for creating RSS feeds of sites that don't already have them - Dapper + Yahoo Pipes.
(I'm experimenting with this currently, since Google Sites doesn't provide an RSS feed for site news items.)
UPDATE: Dapper has turned out to be disappointingly broken, and Google is apparently shutting down their Mashup Editor. Anyone with suggestions for a better solution?