The Internet as a whole is the result of free permission to access the web, use the web, contribute to the web, and share the web with others. But it certainly hasn't stopped there. In the not too distant past, Netscape converted its once commercial version of its Navigator web browser to open source. But before you can see file extensions, you need to turn them on. From Windows Explorer, click on the "Tools" menu, and select "File Options." Click the "View" tab and then uncheck the box next to "Hide file extensions for known file types." Click "OK" and you'll notice that the files in Windows Explorer show a dot and group of three letters after their names. NOTE: Some of these tools include kid-specific web browsers that will visit pre-approved websites. Others include browser plug-ins that won't allow access to online areas that contain forbidden keywords. Another step requires teaching your children to never ever volunteer personal information. Under no circumstances, should children give their personal names, home addresses, phone numbers, or school information to anyone over the Internet regardless of the situation. For fun, let's investigate just how little knowledge these thousand-dollar machines actually require. Can an absolute newbie operate a computer without knowing how to use a mouse or keyboard? Assuming that a computer is set up to operate on voice command - sure! Voice command software allows users to tell a computer what to do and the computer responds by fulfilling the user's commands. You already have such a program on your computer and it's Windows' Add/Remove Programs (available from the Control Panel). This software will assist you with deleting programs that you not only no longer want, but additional files that these program use as well (dynamic link libraries, database files, registry references, shortcut icons, etc. Sometimes, the representatives of these companies participate, but most of the time, the support in this group is user to user, which is just as valid because you're working with a team of experienced people. 5. Support Lines. Another source for help that we shouldn't forget are the support systems of various manufacturers.