Most is Freeware (Software that is available free of charge for personal use) and some may be Shareware (free for an evaluation period but requires a small payment if you find it useful and wish to continue to use it beyond the evaluation period.)

http://www.mozilla.com/firefox/

The award-winning, free Web browser. Firefox protects you from viruses, spyware and pop-ups. A great secure alternative to Internet Explorer.

http://iespell.com/

Here is a great FREE add on for Internet Explorer. It allows you to check spelling on information you enter into a form before you clicking submit. This is great for bulletin boards and guest books.

http://www.roboform.com/

Roboform is the top-rated Password Manager and Web Form Filler that completely automates password entering and form filling.

http://www.fraudeliminator.com/

Fraud Eliminator is a tool for your web browser (FireFox or Internet Explorer) that protects you from the threat of online scams.

http://www.safer-networking.org/

Spybot - Search & Destroy can detect and remove spyware of different kinds from your computer. Spyware is a relatively new kind of threat that common anti-virus applications do not yet cover. If you see new toolbars in your Internet Explorer that you didn't intentionally install, if your browser crashes, or if you browser start page has changed without your knowing, you most probably have spyware.

http://www.lavasoftusa.com/software/adaware/

Ad-Aware Personal provides advanced protection from known data-mining, aggressive advertising, Trojans, dialers, malware, browser hijackers, and tracking components. This software is downloadable free of charge.

Macromedia Flash Player

Installed on over 500 million Internet-connected desktops and mobile devices, Flash Player enables organizations and individuals to build and deliver great digital experiences to their end users.

Adobe Acrobat Reader

View and print Adobe PDF files with this free software

Windows Media Player

Windows Media Player 11 gives you more music and more choices, and for the first time makes it possible to sync high-quality music, video, and photos to the latest portable devices.

Real Player

Real Player for Windows. The player is FREE and there is a 14 day free trial button for Super Pass. Be sure to select The Basic Player download.

QuickTime Player

QuickTime is Apple's award-winning, industry-leading software architecture for creating, playing and streaming digital media for Mac OS and Windows.

Spamarrest

When you signup for Spam Arrest, you will receive a new @spamarrest.com email address. You can also protect your existing email accounts by forwarding them to your Spam Arrest email address, or by having Spam Arrest periodically poll them.
All of your non-spam email is placed into your Spam Arrest inbox, which you can access using POP3 or IMAP from your email program (such as Outlook or Eudora) or from any web browser using their powerful webmail system.