Cambridge Journals
In  order to reach out to new readers, who may not enjoy  access to high  quality scientific and academic research, all content  published in 2009  and 2010  on Cambridge Journals Online (CJO) will be  made free to  access between 15th July and 30th August 2011.
We hope this period of free access enables researchers, students and   interested individuals to benefit from some of the world’s most valuable   academic content.  It will also enable Cambridge Journals to study   patterns of usage and formulate improvements to CJO which will benefit   all users of CJO going forwards.
To access the free articles, you can browse our journals  by subject , or alphabetically by title.   Once at a journal's homepage, you can find the free 2009 / 2010   material by expanding the 'Journal Menu' section of the left hand page   menu, and clicking 'Back Volumes'. From there you'll be able to click   down to Journal Issues and, subsequently, read or download individual   articles. You don't need to have registered with CJO to read the free   material, however to take advantage of all CJO functionality, including   the ability to bookmark papers and save your searches, we recommend  that  you do so.  Register for free here  or at any other point on CJO, using the gold button at the left hand menu.
We hope that you enjoy this period of free access and that you will   take the time to inform us about your experience. All comments can be   sent to Cambridge via the CJO feedback page.