Greasemonkey script Gmail Encrypt adds encryption to the emails you write in Gmail.
Not all people uses encryption. But when your e-mail does all the Business stuff you should encrypt your conversations. This script can only be used from FireFox and you will need the Greasemonkey extention to make it work.
Greasemonkey script [...]

Instructables has a step-by-step for turning a regular old landline phone into a VoIP phone.
This hack requires a little bit of electronic hobbist kinda soldering and might not be for the novice hardware tweaker, but the results look quite good. If you've been wanting to try out Skype but haven't wanted to [...]

You’ll need a DVD burner and DVD burning software (like Nero). Using free software DVD Shrink, you encode the disc to your hard drive and then burn a new DVD with the contents in what looks like a reasonable number of steps. Using DVD Shrink you can even omit DVD extras to save hard [...]