Despite being poor at actually commenting on other people's blogs (or getting round to replying to comments you guys leave me), I do actually pop on over when a link pops up that peaks my born with nosiness.
One thing I always enjoy, when finding a new blog, is what the owner has gracing their sidebar. These, to me, are the first indication of the person who writes there- the person who took the time to hand pick a background and other adornments.