If I'm being honest, I would probably say it's changed me for the worst.
I now do ALL my shopping online. Both food and clothing, and whatever else I may have 'popped to the shops' for, previously.
I also email/message people, rather than pick up the phone. In fact, I'm now so used to doing that, that I actually hate having to ring anyone and try to avoid it at all costs.
I also used to use the library quite often, but now I just look up whatever it is I need on the web. Oh, and that goes for AnswerBank too - it's kind of become my excuse for not going to the doctors when I probably should. Who needs GP's when you've got Sqad, huh! :)
For me, it's turned me into a bit of a recluse. Without the internet I would probably get out and about a bit more.