INTERNET isn't safe !

I am a teenager so it's common to be sucked into the internet and join social sites like facebook and tumblr. Well as I know I must be careful as for that on my facebook account I put it on major private only friends of friends can add me or see my posts. As of tumblr it's a blogging site. These are the two major sites that I use so I have no problem using them without being afriad. Also I know not to post personal stuff like my phone number ofr address so that no stalkers can get to me. This way I know I will always stay safe online (: