Hello. I have worked in I.T. for 10 years now.
The examples above are not the normal type of information we deal with and exchange on a daily basis. The data are really boring. Trust me.
The idea of buying/selling packets of information is retarded. This idea is not dissimilar to buying/selling pages of books.
The closest thing to this idea is perhaps Data Mining:
en.wikipedia.org/wiki/Data_miningTo give you an idea of how we transact large volumes of information, in the real world, most of the work I do with terabytes of information, sometimes processes that take 24+hrs to run, are estimating future pay runs for large organisations (commitments), crunching swathes of data down to a few numbers for reporting to govt. departments, or interfaces that do high volume/low data transactions like payments.
Again, really boring stuff that has been done throughout history, just not to the same extent or speed. That's where I.T. fits in.
P.S. there's some nut who's popular right now in some circles raving about how we'll be able to simulate the brain in the near future because it only contains x bytes of information, yada yada. We're not even remotely close.
Sweet electric dreams y'all.