The story may be slightly old (it was published on October 1) but is worth revisiting because it hints at an upcoming feature in Google Alerts and this is support for RSS feeds. Katherine says:
"I’ve used Google Alerts as a way of keeping track of myself online. If my name is mentioned in a blog or if this column appears on the Web, such as on the site of a newspaper that syndicates it, a Google Alert sends me an email about it. ..In about a month, Google will begin delivering these alerts to users via feeds, as well as emails."
Now Google Alerts lets your track News, Blogs, Web Search and couple of other Google service via email alerts. Since content indexed by Google News and Google Blogs is already available in feeds, this may be a hint that we have soon have RSS feeds for Google Search results as well just like Live Search and Yahoo Search.
Related: Google Alerts Tutorial