Essays / Computer addiction - Need writing topic ideas for my cause and effect essay [8]

Question regarding my Cause and Effect essay Computer Addiction.

It took me a while to settle on a topic but now I have decided on Computer Addiction for a cause/effect essay. I am shooting for 3 effects with 2 of them being in the business world and in personal life. I can't seem to think of another aspect of life that doesn't fall into those two categories already. Any ideas for a 3rd effect, or is it alright to just have two effects? My professor didn't specify how many causes or effects to use.

Also this is only a 500 - 750 word paper, would this topic be focused enough to stay interesting in such a limited capacity?

Thank you in advance.