These databases are available to search via Olin Library. Please note that you need to be on the WUSM network, or on the Danforth campus in order to access many of these resources.
RSS, or really simple syndication, provides a way for users to receive information from websites (including news websites) in a passive manner. Instead of actively going to a site, you receive headlines and updates directly to an email account or to an RSS aggregator program. Look for the orange icon to see if the site you're on offers RSS feeds.