Funaba.org: Ruby
Applications: cal, dvipc, gtkcal, luna, nqt, rar, prof, stared, tkcal, tr-list, wc, Just another Ruby hacker; Libraries: calendar, date2, delay/force, once, smf. By Tadayoshi Funaba.
Radiuslib
Full RADIUS protocol and utility library, protocol conforms to RFCs 2865, 2866; utilities are useful for many common system administration tasks. Description, documents, downloads, contact. [Open Source, GPL].
Ruby
Many useful, interesting applications, libraries: scripts, patches, extension modules, documents. English, Nihongo.
Ruby/Gtk Example: Tic-Tac-Toe
Short introduction to Ruby/Gtk by example. Shows how to inherit Gtk+ elements and the use of a recursive MiniMax tree search.
Ruby/Password
Set of methods to create, verify, and manipulate passwords. Has interface to CrackLib library commonly used to check password strength. Intended use: system administrators who need programs to prompt for, generate, verify, and encrypt passwords.
RubyForge
Hosts over 1,000 open source Ruby projects, over 6,000 registered users; much of the Ruby community is here. Descriptions, news, downloads, links, site statistics. [InfoEther, Inc.].
Zakki-Cho
Software and several translated articles on programming and running Ruby on Windows. "Zakki-Cho" = "Notebook" in Japanese.