I am currently watching the Half the Sky documentary that aired on PBS October 1 and 2, 2012. While PBS has not seemed to upload the documentary for streaming on their website as of yet, you currently have a few choices. You can either order the DVD directly from pbs.org, or you can utilize your Netflix account and access it there. Search Half the Sky, and it should come up posted in two parts.
If I find it posted elsewhere online in its entirety (youtube currently only has clips), I will make it available here.