Links for 7-Aug

Adding Async Operations to Asynchronous Computation Expressions in F#.

JavaScript shell.

Expected exception testing in nUnit 2.5 -- properly constraint based; pity it's still only in alpha. 

IronPython 2 β 4 -- now includes the Python Standard Library, and once again has static compilation (if you can find the updated sample).

Lock-free code - a false sense of security.