Computers have made it easier and easier for people to create incredible amounts of data -- passing the zettabyte barrier
in 2010. The growth of data is actually surpassing our ability to store it, and it's a bit concerning that our ability to store digital information for long periods of time isn't too reliable (just try to access stuff on a 5.25" floppy). Here are just a few interesting links on preserving information for thousands of years.
If you'd like to read more awesome and interesting stuff, check out this unrelated (but not entirely random!) Techdirt post