http://gigaom.com/cloud/obama-administration-to-push-big-data-agenda 
http://live.science360.gov/bigdata/ 

On Thursday, March 29, 2012, from 2-3:45 pm ET, federal government science heads from OSTP, NSF, NIH, DOE, DOD, DARPA and USGS will outline how their agencies are engaged in Big Data research. Their remarks will be followed by a panel of thought leaders from academia and industry, moderated by Steve Lohr of the New York Times. The event will take place at the American Association for the Advancement of Science in Washington, D.C.

An archive of this webcast will be available on nsf.gov within two days of this event.

If you experience technical difficulties with the webcast, please call David Flagg at 703-292-7745 or email dflagg@nsf.gov. 
=Here is the (imagry of the) text of the presentation:
http://mike.bobak.googlepages.com/bds1.jpg 
http://mike.bobak.googlepages.com/bds2.jpg 
http://mike.bobak.googlepages.com/bds3.jpg 
http://mike.bobak.googlepages.com/bds4.jpg 
http://mike.bobak.googlepages.com/bds5.jpg 
http://www.nytimes.com/2012/03/29/technology/new-us-research-will-aim-at-flood-of-digital-data.html 
http://www.nsf.gov/news/news_summ.jsp?cntn_id=123607 
http://ahier.net/nsf-leads-federal-efforts-in-big-data 
http://informaticsprofessor.blogspot.com/2011/03/pcast-report-whats-big-deal.html 
http://www.whitehouse.gov/administration/eop/ostp 
http://www.whitehouse.gov/sites/default/files/microsites/ostp/pcast-nitrd-report-2010.pdf