We will be taking ClearCheckbook offline on Sunday, December 21 from 3:00pm - Monday, December 22 at 12:00am PST. The reason we need to take the site down is we're transferring our entire 1+gig database for the V3 switch and need to make sure no changes are made to it during the transition.
We don't anticipate the conversion to take that long, but we're leaning on the side of caution.