Cub Scout Program Training Update is a new optional resource for tracking advancement, unit blog, etc. It costs $1/Scout. The district or council could pay the fee and get a discount (if over 3,000 Scouts). A license is needed to do data entry, but not to set up an account. The license for the unit would have to be arranged through the council.  
Note: this is evolving as  Scoutbooks is integrated into the BSA system.