ArchiCrypt Stealth 4.2.1
This program alters your identity and allows you to determine what data can be sent and how it should appear.
The content filter, a separate module, uses plug-ins that can be created in Pascal/Delphi-language. With these plug-ins you can change incoming and outgoing data as you like.
Dealing with spam can be made easier with some email plug-ins view it
Taking control of the options in IrfanView pt.1 view it
Using Foxmarks to synchronize bookmarks and passwords across multiple computers view it
Doc Callahan explains what spam (not that Spam) is and how to deal with it view it
Another way to deal with spam is to have an online service filter it view it
Mozilla Foundation has released Firefox 3.5 view it