From The Resource Shelf blog:
Until now, Google Scholar users had to use a variety of methods to create alerts to notify them of new content in Google Scholar. Well, the wait is over and as of this weekend, Google Scholar E-Mail Alerts are now available. It’s Google, of course they’re free.
Alerts appear to work with all three content options:
A) “Traditional” Google Scholar Content (with patents or without patents)
B) Legal Documents and Journals.
There is also a feature that allows you to create alerts each time there is a new citation to an article in which you’re interested.
Because alerts are to find new material (independent of publication date) that has just “entered” the database, the date range limits do not work. You also can’t create an alert for only a source (at least at this time).
And the good news is that you don’t have to have a gmail account for the alerts–any email address will work.