The [National Institute for Health Research] has a mission to support outstanding health research and to enhance access to the results of that research. The NIHR has agreed a membership arrangement with BioMed Central to support publication of research articles in the publisher’s open access journals.
Under the terms of the NIHR's Supporter Membership arrangement, all NHS researchers supported by the NIHR and its partners will benefit from a 15% discount on publication fees when publishing in any of BioMed Central’s 200 peer-reviewed open access journals. Researchers are expected to acknowledge NIHR support. ...
With support through the NIHR, researchers already publish hundreds of open access articles each year in BioMed Central’s journals ...
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.