Gramps is a free genealogy software project and community. We strive to produce a genealogy program that is both intuitive for hobbyists and feature-complete for professional genealogists. It is a community project, created, developed and governed by genealogists. It is available for Microsoft-Windows (32bit & 64bit), Mac OS X, BSD, Solaris, Linux as well as a Linux Live CD that you can try out without installation.
Lifespan Age Calculator compares two dates and calculates their difference in years, months and days. It can also tell how many days months and years between 2 dates plus it can now determine a start date given an age and end date. Free, small (35k) and very effective, Lifespan runs in any Windows or Linux under Wine.
For the discussion and sharing of information regarding the use of the Linux computer operating system (a variation of UNIX). All discussions must relate to genealogy and address available software, software development, and the use of Linux in support of genealogy research efforts.
rootstrust is a genealogy program that can run on Windows, Mac OS and Linux. It lets you import and export data, generate family tree charts and other textual reports, link document and multimedia image files as well as websites to the objects it manages: Persons, Families, Events, Places, Source and Repositories.