 DeLaVina, Ermelinda - http://cms.dt.uh.edu/faculty/delavinae/ University of Houston Downtown. Computational geometry - Graffiti. Publications and software. |
 Bestvina, Mladen - http://www.math.utah.edu/~bestvina/ Geometric group theory. Includes a problem list. |
 Kapovich, Michael - http://www.math.utah.edu/~kapovich/ University of Utah. Low-dimensional geometry and topology. |
 Banchoff, Tom - http://www.math.brown.edu/~banchoff/ Brown University. Geometry, visualisation; Popularisation. |
 Dodson, C.T.J. (Kit) - http://www.maths.manchester.ac.uk/~kd/homepage/dodson.html Manchester. Differential geometry, stochastic geometry and applications. |
 Kimberling, Clark - http://faculty.evansville.edu/ck6/ Triangle centers, integer sequences, mathematical history and biography. |
 Hales, Thomas C. - http://www.math.pitt.edu/~thales/ University of Pittsburgh. Kepler conjecture (announced a computer-aided proof), other space tiling conjectures, Langlands theory. |
 Chang, Sun-Yung Alice - http://www.math.princeton.edu/~chang/ Director of Graduate Studies, Department of Mathematics, Princeton University. Subjects: geometric analysis, algebraic geometry, differential geometry. |
 Anderson, Jim - http://www.maths.soton.ac.uk/staff/Anderson/ University of Southampton. Hyperbolic geometry, mostly in dimensions 2 and 3, and its connections to other areas, such as the geometry and topology of 3-manifolds and Riemann surfaces. Preprints and teaching material. |
 Dunfield, Nathan - http://www.its.caltech.edu/~dunfield/ Caltech. 3-dimensional topology, geometry, and related topics. |
 Calegari, Danny - http://www.its.caltech.edu/~dannyc/ Specializes in topology and classical geometry. Department of mathematics. California Institute of Technology. |
 Palais, Richard - http://rsp.math.brandeis.edu/ Differential geometry, mathematical visualisation. |
 Sormani, Christina - http://comet.lehman.cuny.edu/sormani/ Lehman College and CUNY Graduate Center. Riemannian reometry: manifolds with Ricci curvature bounds, their Gromov-Hausdorff limits and metric spaces. |
 Sullivan, John M. - http://www.math.uiuc.edu/~jms/ Optimal geometries. |
 Glazebrook, James F. - http://www.math.uiuc.edu/~glazebro/ Eastern Illinois University and University of Illinois at Urbana-Champaign. Differential Geometry and its Applications to Mathematical Physics; Index Theory and Foliations; Holomorphic Vector Bundles; Noncommutative Geometry. Books, articles and preprints. |
 Ballmann, Werner - http://www.math.uni-bonn.de/people/hwbllmnn/ Rheinische Friedrich-Wilhelms-Universität Bonn. Differential geometry; geometric topology. |
 Cherowitzo, Bill - http://www-math.cudenver.edu/~wcherowi/ Finite geometry. Department of Mathematics. University of Colorado at Denver. |