Self-initializing quadratic sieve (SIQS), on a 2GHz Opteron, a 95 digit factorization takes 4 hours, and a 100-digit factorization takes just under 12 hours (possibly more). Public domain library for integer factorization, implementing Pollard-rho, ECM, self-initializing Quadratic Sieve and parts of NFS.
On 2022-06-21, the original page http://www.boo.net/~jasonp/qs.html is off-line: "All Delmarva Online services have been discontinued.  December 27, 2014"
With the help of http://web.archive.org/web/20110723030828/http://www.boo.net/~jasonp/qs.html, I could locate the repository https://sourceforge.net/projects/msieve/files/msieve/ which has been updated 2016-11-11. I changed the URL for the bookmark to the sourceforge repository.

Another successor to EROS, a capability-based operating system. Attempts to use formal verification.

Another table of the prime-counting function pi(x), by Thomas R. Nicely.

On-line manual for the Maxima Computer Algebra System

Yet another language for numerical computation. Developed at Boeing, claims to be much faster than Octave, RLab and "old" Matlab. Can read Matlab binary files.

Notes about linear algebra software in Common Lisp, a possible successor for matlisp and (longer term) an alternative to Matlab.

Contains references to B. Smiths ZERPOL and Adam's stopping criterion. SMITH, B.T. ZERPOL, a zero finding algorithm for polynomials using Laguerre's method. Proc. 1967 Army Numerical Analysis Conference, Madison, Wis., May 1967 (Rep. 67-3, US Army Res. O

surf is a tool to visualize some real algebraic geometry: plane algebraic curves, algebraic surfaces and hyperplane sections of surfaces. surf is script driven and has (optionally) a nifty GUI using the Gtk widget set.

ASCIIMathML allows to write formula in a (La)TeX-like format and have it rendered decently on modern browsers (some math fonts are needed). The blog is quite interesting as well.