I have a variety of knols on google. The link to all of them is at this link.

For some reason, when you go to that main knol page, my article on Galileo's biography does not link although it is under my name. Thus, for those searching for it, it only exists here in this link. http://knol.google.com/k/standford-rives/galileo-biography-writings/g6z6g2l2q6zj/10