Great Overview on the current Grid computing technologies

ongoing · On Grids: "This is an introduction to the state of the art in Grid Computing in mid-2006. I start with some definitions and motivation, look at grid economics, survey the kinds of infrastructure that are out there now, and touch on future directions. The introduction is “brief” in the sense that it does little more than touch the surface of the subject, but it’s still immensely long for a blog. [Update: MapReduce is here and multi-node today! It’s called Hadoop.]"