Okay so communications are not high on the if the SHTF list of things to do; but I believe comms are still important.
If you have PMs, food, water, currency, electrical power, and weapons all taken care of then you might be interested (like me) in satellite internet and telephone.
I have only just started to look into such possibilities but already I'm encouraged, here in the UK there is a company called Tooway using the Inmarsat system that looks promising and, are currently offering 10meg internet starting at not much more than landline broadband and connected directly to the backbone; you have to buy a dish and modem but it ain't too bad at £200.
My thoughts are that given a crisis the already very stretched electrical system will give out quickly, that then includes mobile and land based internet and telephones.
Okay so that means a lot of networks will not be available, but plenty have their own electrical generating capacity including satellite uplink stations.
Now which of the important sites have this capacity and how long it would last will take some serious research.
Any thoughts and knowledge on the subject would be greatly appreciated.