A couple of additional items
Telecommunications - Free WiFi hotspots (where power available)
Comcast Xfinity WiFi
Charter Spectrum WiFi
I expect other commercial WiFi hotspot service providers in Florida
have (or will) have free access in the disaster areas.
AT&T and Verizon are bringing temporary Cells on Wheels trucks to the
disaster areas. AT&T, Sprint and Verizon are providing extra mobile data
or waiving usage surcharges in the disaster areas.
Check the AT&T, Comcast, Charter, Sprint and Verizon corporate sites for
details. T-Mobile is probably doing something too, but the T-mobile
web-site makes it very difficult to find disaster information.