Unstructured Data. Got a question?  Somewhere, on some government computer, the information you need is probably available.  Information you paid for and the government would gladly share with you---if only they could find it.  There are thousands and thousands of documents stored on thousands and thousands of hard drives just in the State of Utah.  Throw in city governments, county governments,  school districts, universities, water districts, and other special use districts and the problem is staggering.  Multiply that by fifty states and add in the federal government and its mind boggling.  With all of the technology available to index, catalog, and store this data, what's wrong? [Windley's Enterprise Computing Weblog]

Also don't forget unstructured processes that people use. Unstructured "data" (more like bits) and "processes" form a positive feedback loop of ever increasing entropy.