Automatic notifications when a new issue of a specific journal is published.
Many journals offer alerting services. Use Google to go directly to many journal websites.
Also the below directory is a good source for identify journals of interest and connecting to their websites.
BrowZine provides an easy browsing option for discovering Penn Libraries scholarly journal content. BrowZine pulls together articles from library subscription databases, joins them into complete issues, and displays them in a “newsstand” view.
JournalTOCs provides access to the Tables Of Contents (TOCs) of the current issues of near 28,000 journals that produce TOC RSS feeds. Journals that do not produce RSS feeds are not included here. An individual who registers for this free service can follow and receive email alerts for up to 30 journals.
Users can search for journals by title or ISSN, or keywords in journal article titles. Journals TOCs can be browsed by publisher or subject.
To follow a journal, from the search and browse results, click on the box next to the journal title. Click Search to return to the main page and see a list of the journals you are following
Access information - subscription, free, partially free - is provided. When viewing alerts off-campus, consider using the Penn Proxy link for easy access to Penn subscriptions: http://guides.library.upenn.edu/nettools
For most all sites, it is necessary to first set up an individual account.