Some of the maps seem incomplete or unpolished.
Here's an example: http://issuemap.org/maps/cc414b-net-flow-per-hh-by-state Yes, it's not your site, strictly speaking, but it's a showcased resource and you should seriously consider having them fix/complete these maps. Other than that, beautiful job.
Thanks for the feedback, Mathuin. The recent update to FCC.gov/maps should help address this but we will continue making improvements to the geospatial elements of the site and work to improve functionality sitewide. -FCC New Media