There are three different feeds you can subscribe to, which correspond to the different types of content. Links are short posts of one or two paragraphs which simply share an interesting link with brief commentary. Entries are longer prose pieces of at least 300 words. If you subscribe to everything, you'll get everything I publish, including approximately one entry and five links a week. Comments are not included in the everything feed. If you want to subscribe to comments, you can keep up with the conversation using the comments feed.
Harper’s Magazine has put its entire index online in an attractive and usable interface. The search interface includes term autocompletion, near-instant results, and infinite browsability. This should be a gold mine of information for teachers and researchers to use.
(Via Daring Fireball)