I stumbled across this YouTube video where Seth Godin talks about why blogging is valuable.
He basically says, that for most people it's not the value of the content they generate but the value the writer receives from the process of generating that content. I couldn't agree more. So with that in mind I'm going to be blogging more, but worrying less about whether it is of interest to other people. Instead I'll be blogging about things that interest me (and possibly only me!).