Do we have to use Internet Carfully???

Hello, I am of the opinion that internet helps people to do various things faster but it also has its dark side. Gambling,Advertising dangerous drugs,Dangers associatedwith Social Networks can result in waste of time. Divulging personel information could result in internet crimes. Today the Internet has become an extremely popular'drug shop'. Drugs are advertised on the internet and any person can buy them electronically (eg. using credit cards,electronis fund transfer) without any restriction. Social Networks also has its bad effects. Not only it wastes time,if you are not talking something usefull, but also leave yourself open to theft. Your personel information can be used by identity thieves to open loans and credit cards in your name. Another major worry in social network sites is that posting party invitations. These parties can be to propagate sex;drugs etc. A study shows an increase in internet gambling has resulted in gambling disorders,substance abuse,circulatory disease, depression and risky sexual behavious. I got some of the information from a news paper article. From the information provided I personally feel we have to be carefull when using the internet. What is Your Opinion...