From QS

A media advisory has been sent by Martin Ince, Chair of the Advisory Board of QS World University Rankings. See here.

The document describes the structure of the current rankings. Something interesting is that apparently the number of responses has increased to over 13,000, although about half of those would be from people who filled out the form in 2009 and 2008 and did not update their forms this year. The number of respondents is now about the same as that reported by Times Higher for their survey, although THE will no doubt point out that they can be fairly confident that their respondents are still alive and working in academia.

The number of respondents is less important than the response rate and so far neither QS or THE have said how many forms were distributed.