Sky WiFi digital smartpen (video)

http://www.blessthisstuff.com/stuff/technology/misc-gadgets/sky-wifi-digital-smartpen-by-livescribe/

Keeping the faith: Facebook executives sell as restrictions expire

http://online.wsj.com/article/SB10001424052970204846304578095364077160402.html

/ social media IPO shares /

Hewlett-Packard's Todd Bradley talks tablets in the enterprise (video)

http://allthingsd.com/20121103/hewlett-packards-todd-bradley-talks-tablets-in-the-enterprise-video/

/ pad iPad business iOS Android OS operating system size /

Energy storage • underground

Sustainable energy requires storage. One method of energy storage is by compressing air. But how to store enough. One place is underground:

http://www.energyrealities.org/content_detail.php?uid=erp8946FA909B511E13E

/ renewable gas /