I don't know where to put this so I guess I'll just leave it here. Yesterday, between my 5 blog websites, 4 in which are in active, I received 52 impressions, but then I received $1.29 (My first dollar!

) but then today, I have 28 views and I get $0.00. Why does the price fluctuate like so?
Oh and the site I think made most of the page impression is:
http://2teensbyteens.blogspot.com/
And I got 1 ad click from it.