Oddpost has quietly introduced a news aggregator into their DHTML mail program. One cool thing is that Amazon Book Tracker is in the default list of news sources, but their listing includes a text box where you can enter a search term, which will yield a subscription for that search result. This is really becoming an impressive mail application, with built in Bayesian spam filtering, a news aggregator, and whatever else I haven't found yet. The fact that it's all written in javascript makes it even more impressive. Or scary.