I have previously mentioned Mixmaster ont his blog, a great software tool to send anonymous email and also used to post to Usenet groups anonymously, but visiting a website in order to send an anonymous email is not a good idea because your IP will be logged by the site server.
You could use a proxy [...]

The Free Technology Academy aims to contribute to a society that permits all users to study, participate and build upon existing knowledge without restrictions.
The software used in the Free Technology Academy virtual campus is free software built upon an open standards framework.
The Free Technology Academy is financially supported by the Life [...]

There are some spammers out there, specially in the adult business,who take some of the highest ranked Google images and then hotlink to them in order to get your traffic, it is also possible that you have limited hosting account bandwith or put simply, you do not want anyone to hotlink to any of your [...]

If you are having performance problems with Voice over IP, gaming online, or any other service, you can now find out whether you have a bandwidth problem, slow response times, or packet loss. There is a new service from the hands of the creators of Speedtest, called PingTest.
They will tell yo about your packet loss, [...]

A Virtual Private Server can work well to set up your own anonymous internet browsing proxy. A VPS can cost as little as $8 a month, which is roughly the same a private proxy or VPN provider would charge you. But with you being in full control over the logs and resources on the server [...]

This is a video tutorial from Christian Brüffer at MeetBSD 2007 in Warsaw, Poland. This video will teach you how to protect your privacy with tor and FreeBSD.

For those interested in staying up to date and taking part in computer security and privacy, these are some active mailing lists that deal with it:
Off The Record (Encryption for IRC and IM)
This list is used for open discussion about Off-the-Record (OTR) Messaging software.
Subscribe at:
http://lists.cypherpunks.ca/mailman/listinfo/otr-users
Archived mailing list:
http://lists.cypherpunks.ca/pipermail/otr-users/
The or-talk mailing list is for all discussion [...]

My favourite chat client is irssi, anyone who likes command line and shells will love irssi, it is aso a great tool for IRC operators not only users.
Some IRC networks offer you a secure SSL chat but you will need to specify the port for this, the most common ports in IRC  for secure (SSL) [...]

If you need to choose a password there is a Unix program called mkpasswd that will help you choose a strong one.

Some examples:

mkpasswd –char=10
This will generate a 10 char random password.
You can also try:
mkpasswd -s “insertwordhere”
This will take the characters from the entered word, and create a password from those characters.
For more information [...]

There are times when you may want to ban visitors from a certain country from viewing your website, the reasons for this can be many.
You can block people from viewing your website using rules in your firewall IP tables but if you dont have access to that, you can edit the .htaccess file and add [...]