RANDOM.ORG - RANDOM.ORG offers true random numbers to anyone on the Internet.
Rolz - Free dice-rolling tools for role-playing games.
Random Number Generator - Randomly generate integers or floating point numbers within a given range and specified discrete or continuous statistical probability distribution.
Kiriki - Kiriki is a dice game for Linux distributed by KDE, based on the popular analog dice game called Yahtzee. Designed to be played by as many as six players, participants have to collect points by rolling five dice for up to three times per turn.
The Surrealist - Several online generator toys.
Yahtzee Master - The Game of Yahtzee online or offline.