Other
Ray Stedman: Adventuring Through the Bible
"Adventuring Through the Bible" is a comprehensive guide to the entire Bible with Bible commentary. This site is an excellent place to start if you are new to the Bible and/or have questions about evangelical Christianity.
Bible.org
Is 2 Peter Peter's? By Wayne Stiles
An interesting essay that discusses Peter as the author of 2 Peter and the book's place in the New Testament.
Fourmilab Switzerland
John Walker: 2 Peter
The actual Biblical text of 2 Peter taken from the King James Version of the Bible.