Springer online content moved to a new platform about a month ago. Currently, all UC campuses are reporting access issues with some books and journals on the new platform. Springer is aware of the problem, and we hope it will be resolved soon.
In the meantime, if you are directed to content on the new platform (at http://link.springer.com) and are unable to access it, try accessing it on the old platform (http://www.springerlink.com/) instead: Click the Access old SpringerLink link on the new platform; you should then search for the journal, article, or book on the old platform.
If you have questions about access on the old or new platforms, please feel free to ask us.