As you may know, today is election day in the United States. If you're a US citizen and registered to vote, go do it.
Because this is a big election, lots of political sites are going to feel the squeeze. To counter this, many of them are beefing up their facilities ahead of time. High Scalability is taking a look at techniques to improve response.
If you're not familar with High Scalability (the site), you should check it out. They frequently link to very interesting studies in reliability and to techniques that very large sites (google, facebook, etc) use to manage and balance load.