JournalTOCs is a table-of-contents alerting service. Currently, it covers over 24,000 journals from more than 2,100 publishers. JournalTOCs is free and can be searched or browsed, and journals can be saved with a "tick" to be viewed again (followed). Registration is required to "tick" and follow.
From the Chemical Information Sources wikibook, this resource provides information about and links to several current awareness and alerting tools. Included are alerts from databases, publishers, and Google Scholar. There are a few resources that the University at Albany does not subscribe to, however, there are many that UA subscribes to and several that are freely available.