Bibliography on the Solution of Sparse Linear Systems and Related Areas of Computation - More than 2000 selected references, covering the solution of sparse linear systems and related areas of computation, including: computational linear algebra, high performance computing, mathematical programming and graph theory. - http://citeseer.ist.psu.edu/arantes97bibliography.html
Pseudospectra Gateway - The pseudospectrum of a matrix provides information about the behavior of the eigenvalues of A when A is subject to perturbations. Links to other resources. - http://web.comlab.ox.ac.uk/projects/pseudospectra/
Sparse Matrix Collection (T. Davis) - A collection of large sparse matrices from many scientific disciplines with links and software pieces to operate on matrix data structures. - http://www.cise.ufl.edu/research/sparse/matrices/
Matrix Market - A visual repository of test data for use in comparative studies of algorithms for numerical linear algebra, featuring nearly 500 sparse matrices from a variety of applications, as well as matrix generation tools and services. - http://math.nist.gov/MatrixMarket/
Preconditioned Eigensolvers - Software, papers, and references. - http://www-math.cudenver.edu/~aknyazev/research/eigensolvers/