I’ve been playing catchup with RSS technology recently. Whilst playing around with feed generation/consupmption I found NewsMonster aggregation tool.
It integrates into the Mozilla sidebar mechanism, when asked to aggregate channels it launches a Java process via Web-Start (although this is in the process of being replaced) to pull down article summaries etc. With current events its very useful to be able to get the sets of headlines from multiple news sites at once. It also allows content extraction down to PDA style devices although I’ve not spent time with this yet. The author also has some really cool plans for building a ratings/reputation system - its already a useful tool and the future looks very interesting.