Hello, I just setup my page about requirements management, and free requirements management tools :-)
http://www.hemmerling.com/doku.php/en/requirements.html
http://www.hemmerling.com/doku.php/en/rmsoftware.html
and as found valuable informations in this thread, I would like to add some FREE highlights from my point of view too :-)
a) GEBIT Solutions GmbH "TREND/Analyst Community Edition"
It was mentioned in 2007 by the commercial market study
iX-Studie Anforderungsmanagement
http://www.heise.de/kiosk/special/ixstudie/05/01/
to be on the eylevel of market leaders :-), now there is a free community edition :-).
b )Avenqo PEP Community Edition, a PM software with "strong" requirements features ( at first start of the software, you have to apply for a free software license, by sending an E-Mail, no automatic online activation )
c) MicroTOOL in-Step Personal Edition, a PM software with "strong" requirements features. The downloadable single-user version is free!
d) Besides that, (free) project management software which supports "Scrum", often allows to handle requirements, in the backlog.
Sincerely
Rolf