Sexting, a scary new trend where teens send nude or semi-nude photos via cell phone, is popping up throughout the country. Children can be prosecuted and marked as criminals for the rest of their lives if they're caught with a provocative photo on their cell phone. Could your child be participating in this act that could land him or her in jail? Senior editor at CNET Natali Del Conte shares the latest programs and applications you can use to monitor your kids’ cell phone and computer activity.
TextGuard
This is an application you install on your child's cell phone. Once the program is running, you can log into the Web site and watch all incoming and outgoing calls, text messages, e-mails and Web browsing history. You can select a certain phone number and block any activity to that number as well, so if you suspect suspicious communication, you can make sure your child cannot text, e-mail or call that person.
Watch Natali's report on this program.
My Mobile Watchdog
This is also an application that you install on a cell phone. On its Web site, It gives you a listing of all activity on a given phone. It also alerts you if calls or messages come in from a specific number. For instance, if you see a suspicious or unauthorized person calling, texting, or e-mailing your child, that call is routed through the My Mobile Watchdog Data Center. Notifications are then sent to all persons you have established from your Web application, such as parents, teachers, police, etc. From your Web application or mobile phone application, you can see all suspicious activity, along with full content, including images. You can also print out reports to pass on to law enforcement or school officials. 
iWonder Surf
This computer application lets you control and monitor the Web sites your child is visiting. You can not only see where they go, but when, how often and what they are seeing. You can logon to obtain a log of their activity. Every time they go to a Web site, it records it and instantly sends traffic reports to you. 
Location-Based Programs
All of these programs use a combination of GPS (Global Positioning System) and cell tower triangulation to pinpoint your exact location. If you install Whirrl, you can see where your friends and family are on a map from your mobile phone. The participating parties all have to agree to this, but if they do, you can see where they are, when they were there and perhaps a photo or status update that they posted. It is fairly accurate in areas where cell phone coverage is good, but not always.
Watch Natali's report on how this works.
