Free small software for linux

W3MAIL - fast and small web-mail client written in PHP5. It provides easy webmail access to IMAP accounts and has very few requirements to install.
Main features:
- multi-language support
- simple contacts manager
- MIME attachments
- displays HTML messages
W3MAIL supports leading open-source database engines:
- PostgreSQL
- MySQL.
Translations:
- English
- Russian.
User Interface:
- Web-based.

Small Arms Ballistics is, as the name says, a ballistics calculator for small arms fire. It is a terminal application written using curses.
Small Arms Ballistics is derived from smallball, which was written by Ole-Hj. Kristensen. I have pretty much rewritten the entire program, but smallball got me started. All major
trajectory calculations have been implemented, and a variety of bullet drag models are available.
The program needs a color capable terminal, otherwise it wont run.
Enhancements:
- distribution didnt include saballistics.lsm.in

grml-small is a bootable CD (Live-CD) based on Knoppix and Debian. grml-small includes a collection of GNU/Linux software for system administrators and provides automatic hardware detection.

Whereas grml (without the -small) provides more than about 2.1GiB of software on a 700MB-ISO, grml-small is a very small rescue system for systemadministrators.

It is not necessary to install anything to a harddisk, you dont even need a harddisk to run it. Due to on-the-fly decompression grml-small includes about 150 MB of software and still fits on a business card CD-ROM or USB device with 50MB.

Initial release of grml-small, a very small version of the grml-system. Notice that there are several hacks to reduce the ISO-size, so you wont find for example documentation and manpages on the ISO.

grml-small provides support for booting via USB, see http://wiki.grml.org/doku.php?id=usb for details.

Kernel is based on vanilla kernel 2.6.12 including several patches (MPPC/MPPE, Reiser4, Squashfs,...) but compared with the normal grml system the kernel features have been reduced. See http://grml.org/kernel/ for more details.

Web Sharing is a small tray applet for sharing files on the web.

Publish anything on the Internet or your local area network at home, office or school from a folder on your hard disk with just a few clicks of a mouse!

KaTeker is a backup tool for Linux useful for small companies and private people. It saves data onto hard disk and CDs or other random access media.

cdbxx is a small STL style C++ library for TinyCDB implementation of Constant Database. It provides iterators, data adapters and high level interfaces for databases.

JRCF is a Java/Swing application framework geared toward small-to-medium sized Rich Client applications.

JRCF allows developers to separate their softwares into logical "chunks" and provides easy access to i18n, stock UI widgets, icons and so on.