Many people use Facebook - many many many people.
However not very many people understand the security concerns associated with Facebook.

At it's best Facebook is a fun place on the net. 
You interact with friends, you chat and exchange messages, pictures, videos and play games together - fun
But in the process you are building an on-line profile of yourself. 
If someone wanted to find out more about you or even stalk you there would be lots of information for them to piece together to track you down.

Personally I am not overly concerned about Facebook security. 
I like a joke and a sarcastic comment from time to time but I don't say anything on the 'net that I wouldn't say in person
Living in a small town I don't worry too much about random stalkers and such
I guess if you haven't got much to hide then you haven't got much to worry about!

But of course there are always scare mongers out there and worst case scenarios
I think if most people think about how they use Facebook, or anything on the internet, before they do it they should be fine
If you don't understand Facebok secuirty there are many resources available

For those that are security conscious I think the tip below is a good one and the information was new to me

And if you are on Facebook or Twitter and we aren't yet 'Friends' then please add me: Facebook or Twitter 

Info provided via I Hate My Pc 

Tagging people in pictures is meant to be a bit of fun.

You see someone you know in your photos, they are on Facebook too so you "tag" them. They get sent a little notification that you've done this and now everyone who sees your photo knows who that person is.

It sounds innocent enough but say it out loud a few times and you can see why some people really, really don't like it.

Combined with the knowledge that certain parties are developing face recognition technology for the web you could soon automatically find your self identified in every photo ever there was on the web.

A visual profile of you will be built for good and/or evil.

What happens when they get it wrong? What happens if this technology provides the stalkers and the burglars with detailed up to the minute information on where you are and where you aren't?

Right now there is no "Don't allow me to be tagged" option in Facebook.

But if you want to effectively shut it down by stopping tagged photos of you being seen by anyone other than you.
Here's how:

 - Log into your Facebook account

 - Click on "Account" and then "Privacy Settings "
 - At the bottom you'll see the "Customize settings" link, click on it
 - Then you be on a page where settings are divided into categories

 - Choose "Things others share"
 - You'll then see "Photos and videos I'm tagged in" among the options
 - Click on "Edit Settings", then "Customize" and then choose "Only Me."

 

This means tags of me in photos, etc. are seen by "Only Me". The photos are seen by whoever the photo owner allows but only you see the tag.

You'll still also get pictures on your page but no one will see them.

 

You should test this with a trusted friend to ensure Facebook is now doing what you want.

 

You can also untag yourself and ask the tagger to cease and desist (in the nicest possible way).

 

Once you are happy with that you may want to disable tag notification emails (or any other number of notification emails) from Facebook:

 - Click on "Account" and choose "Account Settings"
 - Here you'll see a page that has tabs - choose "Notifications"

 - Scroll down to "Photos" and you'll see those aggravating tag notifications.
 - Be sure to click "Save Changes" so it takes! 

 

All this help and more is fairly easy to find on the Facebook help pages and forums.

 

Enjoy!