irc bot for announcing rss/atom feeds (http://hackage.haskell.org/package/rss2irc)
rss2irc is an IRC bot that polls an RSS or Atom feed and announces updates to an IRC channel, with options for customizing output and behavior. It aims to be an easy-to-use, reliable, well-behaved bot.
rss2irc [OPTIONS] FEEDURL [IRCSERVER[:PORT]/[#]CHANNEL/NICK]
$ rss2irc http://hackage.haskell.org/packages/archive/recent.rss irc.freenode.net/mychannel/mybot
There is one known annoying open issue: if the feed goes down for a while and then comes back up, the bot may re-announce all items.