This guide explains how you can stay current using "push technology" -- that is, by setting up feeds and alerts so that information comes to you, rather than you having to repeat searches for topics of interest.
Why should you use alerts and RSS feeds?
RSS feeds and email alerts can help you find out about new literature in your field.
RSS in Plain English by Common Craft.
Here is an example of a news feed from the New York Times Dealbook. The RSS feed will constantly update the headlines in this box.