Surface Reconstruction Site
This site features an online surface reconstruction service through which you can upload a file with 3D point data, and it returns a surface model as a VRML file. Technical information on the algorithm is available as well. Here's a description from the web site:
""In several applications, the only available information on a surface is a set of points lying on it. Most computations on this surface then require to find first a piecewise linear approximation of the surface from the sample points: this is the problem of surface reconstruction.
This web site presents a new algorithm developed by David Cohen-Steiner and Frank Da from the Prisme Research Group at INRIA. Experiments show that the algorithm is very fast, and achieves topologically correct reconstruction in most cases. Moreover, it can handle surfaces with complex topology, boundaries, and non uniform sampling.""