More good stuff from Web4Lib: Several libraries have included RSS feeds from relevant sources in their subject guide pages. This makes bringing the latest information (whether that is articles, news, products, databases, etc.) to your patrons with minimal web page editing. Assuming, of course, that you have a source for good information that you can draw from, such as a trusted weblog or a database provider's 'latest articles' feed. Several examples of this sort of tool:

• Morrisville State College Library
• Georgia Tech (a couple examples):
• Biomedical guide
• Physics guide

Somewhat related, I'm working on a project that will eventually include RSS feeds for resources added to our subject guides.