I'm not sure when it was but sometime within the last month or so Yahoo changed the format of their news alerts. I have been using them amoung a number of other methods for watching for various keywords in the news and around the web.
Unfortunately Yahoo seemed to not only change the format but also whatever algorithm is used to pump out the alerts. The format is a lot better but all I get is the same stuff blasted out to me for weeks at a time. So, the alerts have basically become completely useless.
I've just turned them off.
Thanks Yahoo for keeping up with the times.