"Ueber die Anzahl der Primzahlen unter einer gegebenen Grösse" and in translation.
Lecture notes on the home page of Timothy Gowers (DVI format).
A bibliography compiled by Wadim Zudilin on values of the zeta function with links to those papers ...
A directory of websites maintained by Matthew Watkins on the topic of The Riemann Hypothesis and Ze...
Java applet developed by Raymond Manzoni for viewing zeta in the complex plane.
Article from Volume 4 of What's Happening in the Mathematical Sciences by Barry Cipra, describing c...