http://tags.library.upenn.edu/project/25691/intro+first+definitions PennTags Feed for /project/25691/intro+first+definitions PennTags Feed http://tags.library.upenn.edu/makerecord/url/6324 http://tags.library.upenn.edu/makerecord/url/6324 What is RSS? - A Brief Introduction Introduction to RSS from the Penn Library.<br />