I recently got a blog as well as part of my Cybertown promotion efforts.
I asked myself: what would I post about? And my colleague told me: whatever the hell you want! So I do.. A quick scan of recent thrilling topics:
-Saturday morning cartoons: where have they gone?
-Bjorn's Linux adventures
-Starting school again.
-My new gear [watch, pocket pc, mouse, cellphone.. yes, I do love my gear!

]
So you see, you can blog about whatever. I'm sure you have a lot of silly stuff to blog about.