Mechon Mamre
Hebrew English Bible: 2 Kings
The text of the Book of 2 Kings, presented side-by-side in Hebrew and English.
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.
Luther Seminary
Bible Tutor: 1 Kings
This site from The Bible Tutor provides a very helpful introduction to the book of 1 Kings. This site divided the book into three parts and includes links to relevant subjects.
Luther Seminary
Bible Tutor: 2 Kings
This site from The Bible Tutor offers an excellent introduction to 2 Kings that divides the book into three main sections. There are also links to important Bible verses and links to other relevant subjects.
Other
Matthew Henry's Commentary 2 Kings 1
Matthew Henry's discussion of the first chapter of 2 Kings. You can also read his comments on the rest of the book by clicking on the bottom to another chapter.