The best way to set up a table of contents alert is:
Note: Library or personal journal subscriptions may not be required to participate in these services. However, a library or personal subscription may be required in order to view the full-text freely.
Here's an example using the American Sociological Review from Sage Publishing
Another great way to stay current is to join a professional organization for your field. Each of our subject research guides includes professional organizations on them to get you started.