some interesting stuff on molecular evolution, which I hope to come back to
starting with a post by Mike Behe, on a proposed mechanism for the evolution of complex cellular systems like the spliceosome: http://www.evolutionnews.org/2011/08/irremediable_complexity049851.html
"Overwhelmingly, progress in biology has consisted of finding new and ever-more-sophisticated properties of systems that had been thought simple. If apparently simple systems are much more complex than they initially seemed, I would bet heavily against the hypothesis that apparently complex systems are much simpler than they appear."
also, I will read this eventually: directed evolution and enzyme alterations: