NESLi2 analysis of usage statistics - Summary
Swetswise - publishers' checklist (courtesy Angela Conyers)
COUNTER link to definitions for aggregators

Standardized Usage Statistics Harvesting Initiative (SUSHI) Link
Institutional Repositories Stats (IR) @ Southampton (courtesy Janet Springer)
Usage Factors Study - Final Repor 2007. UKSG study developing and implementing journal Usage Factors (UFs)
Publisher's Archives 2007 (Cliff)
Database listing 2006/7 (Cliff)
Key Performance Indicators 2007 - Journals
Key Performance Indicators 2007 - Books
Springer details - how to download stats