COUNTER (Counting Online Usage of Networked Electronic Resources) has released the COUNTER Code of Practice for Usage Factors, Draft Release 1.
Here's an excerpt from the announcement:
The Draft Release 1 of the COUNTER Code of Practice for Usage Factors, is one of the most significant outcomes to-date of the Usage Factor project, and is an important part of this, the final Stage of the project, which will take Usage Factor forward to full implementation. This Draft Release 1 is based on well-established COUNTER standards, procedures and protocols; it is designed to enable the recording and reporting by publishers of credible, consistent and compatible global Usage Factors for online publications hosted by them (and incorporating usage of these publications on other platforms that are capable of delivering COUNTER-compliant usage statistics). While Release 1 of this Code of Practice focuses on Usage Factors for journals, it is envisaged that its scope will be extended in subsequent Releases to cover other online publications, such as books and reference works.