Online Tools for Mathematicians

• Mathoverflow.net
• arXiv
• arxivist - your personal guide to the arxiv
• Google Scholar
• Mathscinet (requires University account)
• Zentralblatt Math
• GDZ (Göttingen Digitisation Centre)
• The Manifold Atlas
• Detexify (draw a symbol and get the $\LaTeX$ code for it)
• Online Videos of the MSRI

Blogs

• Secret Blogging Seminar
• Noncommutative Geometry

Homepages

• Dr. S. Barlak
• Prof. A. Bartels
• Prof. M. Dadarlat 
• Prof. J. Ebert
• Prof. S. Eilers
• Prof. D. Evans
• Dr. B. Janssens
• Prof. M. Joachim
• Prof. Y. Kawahigashi
• Dr. G. Lechner
• Prof. R. Longo
• Prof. M. Marletta
• Prof. R. Meyer
• Dr. T. Nikolaus
• Prof. K.-H. Rehren
• Prof. T. Schick
• Dr. U. Schreiber
• Prof. A. Thom
• Dr. A. Tikuisis
• Dr. C. Voigt
• Dr. K. Waldorf
• Prof. S. White
• Prof. W. Winter
• Dr. C. Wockel
• Dr. S. Wood

Mathematics Departments

• Cardiff Mathematics - People and Events
• Cardiff University
• Westfälische Wilhelms Universität Münster
• Georg-August-Universität Göttingen