I could get rid of cell phones, Facebook, and a lot of the fluff of the internet (YouTube et al) but at this point some of the online people I've met and do stuff with is just too integral for me to do without. I admit I haven't really been too forthcoming with personal stuff on the Glade despite being here since ... awhile ago, and haven't really got close to anyone here, but there have been a handful of people over the past 13 years I've spent online that have been pretty important to me, and I'd definitely feel it if the Internet would to one day disappear forever.
It was actually really helpful, I think, though it's hard for me not to take it for granted since it's the only thing I know. Pre-Internet was grade school time for me, so all my friends were always here to begin with. When I moved away to college (twice!) I basically brought a lot of my social life with me and never skipped a beat. I know that plenty of people, when they move away to college, have to basically start totally anew (unless they have a Facebook account at least...) and it can be a very unpleasant experience. Especially when the years spent apart pulls relationships back home apart, to varying degrees.
Moving away to school isn't even all that bad compared to moving away for a job or something, even. Despite not being terribly socially proactive, I ended up becoming a part of the Library Science program crowd within weeks of showing up. We were birds of a feather, so that helped a lot. When I was later applying to jobs 10+ hours away, I was faced with the very real possibility of moving to somewhere where I have no friends or family for hours. No ahead of me that put me with dozens of other like-minded people, either. With the Internet that was not a scary proposition. Without? I'd fear for myself spending all day playing old RPGs or something, rather alone, for quite some time. I guess it would depend a lot on coworkers and working environment, but it definitely would have had the potential to be quite negative. :p