What is the internet? essentially it is an inter connected network of computers. Hence the word Internet. The important aspect of the internet though is that it all connected through a series of standard protocols. These protocols (agreed rules) allow computers to communicate with each other.
Most of the internet is experienced through web browsers or web applications viewing websites with a range of computing devices from portable devices such as smart phones , tablets to desktop computers.
For example the use of rapid dispersion of ideas such as memes, news articles or other forms of information and how this influences daily thinking or psychological processes of peoples or groups of people (communities).
It may also consider the way in which different cultures, societies sub cultures treat the internet.