Ten historically significant mathematicians, from Pythagoras to Gauss, with links for further study.
Maureen at Trinity Prep School is calling for submissions to the Thomas Jefferson Education Carnival, to be posted next week — when I will be gone, so you’ll have to click over there and find the post on your own. (The last edition was here.)
Finally, backtracking a bit, there are plenty of great posts at Unschooling Voices #9. (And if you are an unschooling blogger, now is the time to submit an article to the next edition.)