... At BookExpo America, we presented an update that included sales data for 21 O’Reilly Media 2008 front-list titles that we found on one or more P2P sites. This is an increase of 13 titles over the 8 that had been found when we first presented at Tools of Change in February 2009. ...
Average sales for unpirated content start higher and peak later, although this may reflect the specific nature of titles in a small sample.
The primary difference between sales of pirated and unpirated content appeared in weeks 19 through 25 [after publication], when sales for pirated content peaked a second time at a level higher than that seen in the first, sell-in period. This second peak followed the time (19 weeks) at which the average pirated O’Reilly front-list title was first seeded on a P2P site. ...
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.