Many professional journals and other news sources now allow you to get updates, either via an email message containing table-of-contents alerts, or from an RSS feed (which will display the TOC in your email browser, with a link to the fulltext article).
Need a tool to manage your news alerts? Try a tool such as Pageflakes or netvibes (these are described in more detail on the Library's tutorial on Start Pages; or contact me for additional information). The library also provides a regular schedule of courses on new media & information management tools:
RSS, or delivered headlines with links to the fulltext articles, are available here from a sampling of