The Internet is a tool. A tool is neither positive nor negative. A hammer is a tool. In the right hands a hammer can be used to build a home, providing shelter and warmth for a family in need. In the wrong hands a hammer can be used to destroy that same house, tearing down walls and smashing windows.
Just like a hammer the Internet can be used to build great things. It can bring families together even when they are separated half a world away. It can also be used to destroy, shattering bonds like brittle window panes.
The Internet is a tool. How it is used it up to you.