(NBC) - The Internet can be a pretty intimidating place.
Web companies can track your online activities and that can compromise your privacy.
One of the handiest tools for smartphones and web browsers is called Ghostery. You can download to your computer or mobile device and it shows you what companies are tracking you and then gives you the power to block scripts, images, objects and framed documents from companies that you don't trust.
A website called Find Me Online offers extensive links to all sorts of places where information about you may be publically available online. You have to enter your name and use all the tools listed here, but if information about you is online, it finds it. And there are lots of tips on how to have your information removed.
But probably the best tool is called Just Delete Me. This allows you to, in effect, erase yourself from the Internet. It's a huge directory with direct links to various web services that you can click on to delete your account and personal information.