As part of an update to its alerts feature, Yahoo added a feature that allows users to get RSS results via SMS. The free service will send a message to your phone with every new item posted to an RSS feed. The feature works with any RSS feed, but is likely most useful for feeds used to connect small groups of people (group projects, clubs, etc) where volume will be lower than on a news site.
Since normal text messaging fees apply (though there is no fee from Yahoo) make sure to use this feature wisely.
[via Russell Beattie]