Technology

FileZilla A very good Open Source FTP client for Windows; good support for SSH, many other features.
Grid today
Linux Today News for the Linuxers
Mozilla A good browser available for many platforms and OSes.
OpenLDAP Open source directory server
Red Hat Red Hat linux is a good Linux distribution with a lot of features ;-)
Slashdot A site for your morning cofee
XML A map through the acronym jungle
Zope Open source application server that powers this site