I like your new avatar. What makes cog-wheels so special to you?
Sorry for the delay in answering your question.
I found this post that I have written before:
I first thought about the gears in my brain not working, heh. I have felt pretty out of it in the past. I looked for a picture of a persons head with the gears/cogs turning inside and couldn't find one I wanted. I did find a .gif of gears turning behind a wall and used that on WP. After that I just thought I may as well keep with the gears/cogs thing so I don't have any problems deciding on an avatar.
I kind of like having this "theme" going now.
So now I just use cogs themselves as avatars.