The internet have a big impact to us but in the past so the telegraph, the telephone, the radio and the television made a big impact to our ancestors and still does to us, I think that in few years something new will appear, that´s the price of evolution.
No doubt it´s amazing two persons one each corner of world and communicate by webcam, we know the news at real time for example the earthquake in Haiti, the September 11th , for a global education and learn cultures from every places that you imagine, to search everything you want, but does some bad things to, that´s why the internet must have rules and ethics for a correct use, for example the orthography is being murdered in our case the Portuguese, I have seen examples like … k axas dixo?.. and the correct is …que achas disso?, at some point they can´t separate the right from wrong, when I´m on the messenger and somebody start´s write whit abbreviations I hate.
The internet is a business to, in internet you can buy everything you want from any place you want and sell to, actually I already purchase some things from United Kingdom and was delivery by mail, but you have to be cautious because some websites are fake and steal your money, I recommend some trusted websites like miau or ebay for example.