One of our most popular databases, Web of Science (from Thomson Reuters), has a new interface for 2014. This is available at http://apps.webofknowledge.com. It looks much ‘cleaner’ but has lost none of its previous functionality.
There is a series of short videos demonstrating the new interface available from a link on the home page: http://wokinfo.com/training_support/training/web-of-science/. Watching at least the Quick Tour of the NEW Web of Science (the video on the top left) is very worthwhile.