Links roundup: 6

• Sophia Ciocca trots out the New York Times's new text editor, Oak. Track Changes and Comments. Color me green with feature envy.
• The OLPC project isn't quite dead. Yet.
• John Cook lucidly explains posits, a possible improvement over the current floating-point standard.
• Linkrot? The Times is fighting Flashrot, trying to shrinkwrap 10-year old pages in its archive.