There is a great history timeline on BBC History site. It is well worth visiting and spending some time on. The internal links are excellent and the extra material is smashing!
Coming Anarchy has a fascinating post about the strange borders that make up the modern Malaysia. The comments offer some interesting bits too.
For those of us, slightly obsessed with the US Civil War, I offer A Civil War Blog and this fine example of the authors posts, a list of his top ten Civil War Blogs.