2005	2006	2007	2008	2009
Consolidated	Consolidated	Consolidated	Consolidated	Consolidated
Elsevier RSC Wiley Blackwell Springer ACS OUP	OUP Blackwell Taylor Francis Wiley ACS Elsevier RSC	Elsevier Springer RSC ACS Wiley Blackwell OUP	Springer Wiley ACS Blackwell OUP	IEEE OUP Springer Taylor Francis Wiley-Blackwell