Overall I believe technology is very helpful as you can communicate with people easily and be abreast of whats happening around you. However chatting, facebook etc can be time consuming also. I see people on chat even during a bus ride. Always saying something. Maybe it takes away from other activities.
I have managed to avoid these things till now. However kids to grans everyone is on FB or twitter these days.
Still i dont think tech is harmful. We can always avoid it as its our choice.