This guide will help you create an alert or notification when materials of interest to you have been published or added to a database, websites, new publications within parameters of previous successful searches, etc.
Alerts (notifications) can be delivered to through a variety of ways, not just to your email.
Getting started:
Choosing the Best Sources (why bother to do this)
Alerts of a journal's table-of-contents
Databases that offer alerts
Vendor databases and saving your search
Other sources for alerts: Google Scholar, Blogs, RSS Feeds, Twitter, Grants (including PIVOT-PR)