http://www.google.org/recharge/
Google.org is working to promote the use of plug-in hybrids and accelerate the development of vehicle-to-grid technology.
http://www.hillaryclinton.com/news/speech/view/?id=4059
Presidential candidate Hillary Clinton's November 2007 speach "ENERGY AND CLIMATE CHANGE: Comprehensive Strategy to Address the Climate and Energy Challenge" in which she discusses the potential benefits to the grid, of plug-in-hybrids.
http://www.barackobama.com/issues/energy/
Presidential candidate Barack Obama's "Plan for a Clean Energy Future" includes promoting te use of PHEVs and overhauling the electric grid.
http://en.wikipedia.org/wiki/Grid_energy_storage
This page provides a brief overview of grid energy storage options with references. (warning, Wikipedia is not perfect and should not be relied on as a sole source. As an example, at the time of posting the page claims "A 27 megawatt 15 minute nickel-cadmium battery bank was installed at Anchorage Alaska in 2003". this facility is actually in Fairbanks, Alaska,)
References ~ Where I got all of this interesting information