RSC have released a few new features based around the RSC Prospect project to enhance their articles. Some of these features are cosmetic and improve the look and feel, and some are deeply semantic and a bit specialist.
mouseover popups of chemical structures,
improved subject pages and compound pages,
compound link through to ChemSpider,
better toolbar and page layout.
An example is at http://tinyurl.com/dba3mv - [compounds in the title show the structure when you put your mouse over them].
As part of our work in expanding the set of open subject classifications in our subject area, we're also making available the first three of a set of open chemistry ontologies:
Name Reaction Ontology (RXN),
Chemical Methods Ontology (CMO)
Molecular Processes Ontology (MOP).
These are all available from http://www.rsc.org/ontologies.