Blog Books?

Have any of you seen 'Julie and Julia?' I thought it was a wonderful film for two reasons. I loved seeing 'Julia Child' falling in love with French food and cooking it. I was interested in the notion of creating a book based on a block. If Samuel Pepys was around today I imagine he'd blog. If you don't know who Pepys is, Google him, or go to a library and check out his diary!!!!
Do any of you have a blog/diary that could be turned into a book? A movie? If so, go for it.