Thomson Reuters has published the Impact Factor of 2013 
on JCR(Journal Citation Reports) .
It's platform has also been renewed. 

□ New Platform (Related URL1)
https://jcr.incites.thomsonreuters.com/

* You can also use an old platform until the end of 2014.
 http://webofknowledge.com/jcr

Additionally, an another database - Essential Science 
Indicators（ESI）is available.

□ Essential Science Indicators（ESI）(Related URL2)
https://esi.incites.thomsonreuters.com/

Please try these!

■ Information
http://wokinfo.com/products_tools/analytical/jcr/
http://wokinfo.com/products_tools/analytical/essentialscienceindicators/
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