We present a system to automatically generate RSS feeds from HTML documents that consist of time-series items with date expressions, e.g., archives of weblogs, BBSs, chats, mailing lists, site update descriptions, and event announcements. Our system extracts date expressions, performs structure analysis of a HTML document, and detects or generates titles from the document. Categories and Subject Descriptors H.5.4 [Information Systems]: Hypertext/Hypermedia; H.3.5 [Information Systems]: Online Information Services General Terms Management Keywords RSS, Atom, feed, document analysis, syndication