I wrote my dissertation on this topic and it is tough to generalize to all technologies. For arguements sake, lets say that technology enables three capabilities: it lets you process more data faster (think spreadsheets), lets you store and retrieve more information (think databases), and it lowers communication costs (think networks). The short version is that the communication costs are what kills productivity. If you make it easier to communicate or gather information, people tend to not be thoughtful about the questions they ask or the information they currently hava available.

For those interested, here is a link to the original research.

these poll options are not very grood.