Background: The Cochrane Library is accessible to millions of users around the world. To monitor usage development, explore user activity, and identify trends, it is important to examine current data in the light of previously reported data. We will conduct a follow up of the poster presented at the 2005 Cochrane Colloquium (P150] : The global reach of The Cochrane Library) to build on our understanding of how people use The Cochrane Library, where they come from, and what reviews they access.

Objectives: To present six-month usage statistics on Wiley InterScience for the period 1 January 2006 to 30 June 2006. To compare these statistics with the same period in 2005. To measure The Cochrane Library usage through other data providers.

Methods: For the period of 1 January 2006 to 30 June 2006 we will perform a monthly count of:

- user sessions;

- abstracts viewed;

- full text articles viewed (HTML and PDF format);

- top 50 reviews;

- usage by country and usage by country adjusted for population size.


The first four items will be provided by Wiley InterScience usage statistics, which are COUNTER compliant (see http://www.
projectcounter.org). The fifth item will be provided by WebTrends. WebTrends are not COUNTER compliant. We will also collect usage data for the same period from other data providers who provide access to Cochrane content and compare these with the InterScience data where possible.

Results: We will present the data by month and year to date, using the 2005 data as a comparison.

Conclusions: Conclusions and commentary will be presented in the context of the access arrangements in various countries/regions.