If you are reading, studying, teaching or simply interested in the life, poetry and influence of the poetry of Publius Vergilius Maro -- Vergil -- then you need to check out Timothy Abney's new site, Virgilius.org. The site's stated mission is to be the central web clearing house for the Aeneid.
Currently, there are two sets of annotated resources on the site. The first is a general set of links pertaining to Vergil. The second set focuses on sites useful for teachers and students preparing for the AP Vergil exam. Each site has a brief review, critiquing the content and usefulness of the site.
Virgilius.org includes some interesting daily features. Each day of the month, you can read about a different character important to the exam syllabus. There is also a daily rotating figure of speech or rhetorical device.