Online Resources

Please send me your suggestions if you are using a program that is not listed below and you think that it belongs here. Below are some software that I have found very useful. They might be interesting for you as well.
Security

• Anti-virus and -spyware
  The free version of these tools have to be run manually (except AVG). They don't protect the computer while you are using it.
  • AVG antivirus and antispyware. This protect your computer while you are using it.
  • Spybot antispyware.
  • CureIt antivirus.
  • Malwarebytes.
• Firewalls. I suggest that you are careful with these. Never use more than one at a time and if you experience problems, uninstall them from the control panel.
  • ZoneAlarm
  • Comodo Firewal

Office solutions and programs

• OpenOffice. An office suite that can be used instead of Microsoft Office.
• Google Picasa. Photo editing program
• GiMP. Graphic/photo editing program
• Check out sourceforge.net. They have a lot of software that is opensource and most of them are free.

Other programs

• Skype (Phone friends and family over the internet for free)
• PageBreeze. Free and simple web page editor. You need an FTP-client to upload the files.
• Filezilla. FTP-client.

Operating systems
The distributions that I have listed below is the ones that I have tested during the last 5 years. There are a lot more and if you follow this link to Wikipedia you will get more information about the different distributions and what they offer.

• Ubuntu
• Fedora
• Mandriva