Contemporary medievalists are known for making things lively. Sometimes this means trying one's best to relate aspects of the middle ages to something today, comparing the theme of a text to a motif of a popular film. After a while, though, this can get tiring and you just want some good old history. This is where the "Post Graduate Chronicles" comes in and saves the day.
Filled with history, analysis, and bibliographic links for further reading, Chronicles is a great place to kill a half-hour or so and learn a bit about one's past. One of my favorite features of the site is that if focuses primarily on the early middle ages and has a decent amount of content concerning Welsh and Danish history. Studying the early middle ages, one often sees focus on Anglo-Saxon England instead of its lesser known neighbors; combine that with its straight edge on history and you have a winning combination.