What do I blog about?

Reading the comments of the other teachers who are completing the challenge at http://conversations.edublogs.org/ I noticed how hesitant some of the participants are about knowing what to write about. So I decided to have a look around at friends' blogs and twitter recommended blogs and tried to feed my mind with their knowledge and perspective. A number of bloggers explained - you don't have to come up with something original, you just have to apply your own perspective.