Here is a brief summary and explanation of what the applications on Facebook really is.
Applications on Facebook are various small programs that you can use. Del most appliaktionerna is about pure entertainment, while some are more utility-based or made for making it easier to connect to others.
Typical applications are different variations of ordinary quiz, some based on skills such as where you can see pictures of the actor and to answer correctly on whos in the picture while the other is about to answer questions to see what kind of person you are.
There are many different types of games some small and simple and also "bigger" games that you can spend hours and hours with.
There are many apps that let you send postcards (greeting cards) etc. your friends.
Other applications can extend the functionality of Facebook for example if you want to date someinde, buy and sell stuffs and so on.. In short, there are applications for almost everything
Many of the applications that you use ports on your Facebook page. Do you have such played a game or participated in a quiz can others often see the results.
You reach the applications in the left part of yoyr facebook page (or at the bottom). Click on the link and then choose "Browse applications" which lists all the applications available. You see how many people that are using the application and even if any of your Facebook friends is using the application. You also have to agree to who the applications will share its information for.
To the right you will find a list of categories so it's easier to find applications that fit you.
Most of the applications is made by third parties, ie. It is not Facebook that create them. Because basically anyone (with the right skills) can create applications not all of the devlopers ar good guys. Some can contain viruses while others collect infomraiton of you and use it (or sell it) to other on internet. It can be difficult to know what applications to trust, but look at how many people it is that use them. Is it onlya a few you may stay away from it..
So when there comes new applications on Facebook you might not be the first one to try it ..
Step 9 is about Extended functions on facebook »
If you get bored with facebook and want to quit and erase all of your information you can learn:
If you want to get some advices on facebook about security, integrity and other thing you should consider when you use facebook:
The best way to protect your children is to learn more. Start your own account on facebbok to understand whats it's about.