Platial has a new service called Today Nearby, it is a very (very!) nice mashup of feeds from Reuters, Flickr, YouTube and others. The information from these feeds is put on a map and you can subscribe to this feed with KML and RSS. It’s great to see a local cityname when you arrive on the page! Nice;) Type in any cityname and you should see the latest info about that region… Platial also have their own blog which states:
This is our first stab at a tool that works with the growing wealth of geo-referenced information and provides a real-time …read more

The Geonames “RSS to GeoRSS Converter” reads the entries of an RSS feed and searches the Geonames Database to find a location for the entry text. If a relevant location is found, its latitude and longitude are added to the RSS feed using the GeoRSS encoding (via rss-specifications.com).
It works pretty good, check out this example of the Reuters newsfeed. The lat and long parameters are added to each item, sweet!