By invitation from Spektrum Verlag, I have recently begun to blog about IT topics for the non-IT literate. After some preliminary work, I just blogged the first entry of real substance on "How do machines compute?". Unfortunately, this is a German-language blog, so it may not be of real benefit for you (plus, do you really consider yourself IT-illiterate? ;)).
To me, it is an interesting experiment. It took me quite some effort to (try to) phrase things in a very generic way (mostly) without any technical vocabulary. I am now looking forward to the feedback I receive (if any). It will be most interesting to see if I can capture some momentum on this blog. If you understand German, you may want to have a look yourself - and be it only to see if I messed up ;)