I was looking at a friends blog today and had I not known for sure that she was the blogger I would have thought I was looking at a complete strangers. The life she speaks of online is nothing like her real life.
A few examples:
Blog: She lives in a 'bespoke' edwardian country pad
Reality: She rents a run down damp semi detached house in the country
Blog: DH has been busy chopping logs, can't wait for a lovely log fire tonight he is so romantic!
Reality: They have ran out of oil due to spending too much on dope!
You get the point.