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
  • AVG antivirus and antispyware
  • Spybot antispyware
  • CureIt antivirus
• Firewalls
  • ZoneAlarm
  • Comodo Firewall

Office solutions and programs

• OpenOffice
• Google Picasa. Photo editing program
• GiMP. Graphic/photo editing program

Internet programs

• Skype (Phone friends and family over the internet for free)

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 them and what the difference is.

• Ubuntu
• Fedora
• Mandriva