Page Rank is Down: Is Google Penalizing Me?

Nothing seems to shock me more this month than my Page Rank going down. Okay, I was out for few days. When I left i had PR of 4 for http://www.spaceofinfluence.blogspot.com and PR of 2 for http://spaceofinfluence.blogspot.com.

Just arrived today and this blog "Make Money Online" has a very very low PR.

The shocking very alarming Update:

• with www- The PR is 3 (just an update: as of Oct. 25 the PR is now 2. Is my blog's PR decreasing on a daily basis? This is getting crazy! But I can do nothing about it!!)
  
• without www- The PR is 1

I won't deny I sell links in my blog as a way of monetizing it. I've read about blogs and websites being penalized by google for selling links. In fact the PR of the websites of Pro-blogger, John Chow, and Mike Perry have gone down as well.

My blog is hit by "canonical issue" plus the penalty from google. It's like am being skin peeled twice. I have not seen any change in my SERP and I hope I won't see my SERP going down as well. God forbids! Aaaaaah! Somebody please cheer me up!!!