For some reason Google's followers gadget is still broken, at least from my view.
Apparently they are fixing it but it has been on the fritz for a while.
At first followers would fall off or not always show, now (the last 3 followers) almost never appear any more. It's annoying. It supposedly has something to do with when they combined the Followers gadget with Google Friend Connect. Maybe one day they will figure it out, if not there's always WordPress.
*Update: Here's a link that may help... http://starsunflowerstudio.blogspot.com/2011/10/help-for-missing-gfc-followers-gadget.html#