Kontact gives you email,address books,and calendaring in a neat package. And IMAP supportmeans you can access this data from anywhere on the network.

Apple’s Darwin Streaming Server is a free version of the commercial Quicktime server. It can handle the seminal MP3 and MPEG-4 formats, and it has a web front-end.

Microsoft has been quite successful with pushing its SharePoint technology as a means for supporting document collaboration and version control. Until now, no direct competitors have come up with a viable alternative to SharePoint, but O3Spaces is about to change that.

The CRM114 filter program, which is integrated with KMail, helps fight spam in POP3 and IMAP mailboxes. Because this flexible filter does not require server-side changes, it is a good choice for users without root access to their mail servers.

The Firefly Media Server makes streaming music and Internet radio onto your home network for iTunes or Banshee clients as easy as pie.

Rockbox firmware brings new features to the iPod and a few other MP3 players. We’ll show you how to install Rockbox on an iPod, and with a little tinkering, you'll have the ability to play Ogg Vorbis files, customize the user interface, and add plug-ins.

If you want to offer visitors to your website more than a text-based howto, why not publish a video-based tutorial with Vnc2swf.

We’ll show you a universal system for marking changes in text documents; and along the way, you’ll get some practical experience with writing OpenOffice marcos.

If your holiday videos and TV recordings are fillng up your home computer, burn them onto a DVD with Kmediafactory.

Mindmaps are useful for organizing ideas and data. Treeline is a promising mindmap tool for KDE.