I'd quote it, but theres just too much text to post really. http://www.problogger.net/archives/2007/08/16/why-does-my-feedburner-subscriber-count-fluctuate/ ht

I'd quote it, but theres just too much text to post really. http://www.problogger.net/archives/2007/08/16/why-does-my-feedburner-subscriber-count-fluctuate/ http://www.problogger.net/archives/2007/08/16/why-does-my-fe... There is an explanation by Rick Klau who is (was?) Feedburner’s Vice President of Publisher Services. Hope this helps.