I found these lately:

• Mopsos - What is social capital? -
  Tags:socialcapital
• Seth Godin on Remarkable Goods - please watch this remarkable video - at least the minutes 13-15
  Tags:marketing video
• SHARE (Adobe) -
  Tags:collaboration filesharing flash
• Betavoltaic Battery: Scientists Invent 30 Year Continuous Power Laptop Battery - that’s something!

Since [tag-tec]social networks[/tag-tec] are a steady buzz these days the excellent article referred below helps to understand the fundamental elements of online social networks by going back to research papers and linking their outputs to real world examples.
For designers/facilitators of [tag-ice]online social networks[/tag-ice]: take care that the flourishing of disconnected sub-networks is supported and that the big-component zombie doesn’t get all the fresh meat.