The US Environmental Protection Agency is not only providing OA to air quality data, but is making it easy for non-scientists to use and interpret. From Monday's announcement:
The U.S. Environmental Protection Agency’s real time scientific air quality information is now available on Google Earth. The information tool accesses the AIRNow database hourly so that the Air Quality Index displays the most current air quality conditions. Public health officials, media outlets and the general public can now view timely air quality information, by city, on Google Earth....
Posted by
Peter Suber at 11/21/2007 12:19:00 PM.
The open access movement:
Putting peer-reviewed scientific and scholarly literature
on the internet. Making it available free of charge and
free of most copyright and licensing restrictions.
Removing the barriers to serious research.
I recommend the OA tracking project (OATP) as the best way to stay on top of new OA developments. You can read the OATP feed on a blog-like web page or subscribe to it by RSS, email, or Twitter. You can also help build the feed by tagging new developments you encounter.