Easy for me (basically none). I don't carry a phone while fishing. If I hear (before going out) that there are fish in a certain area, I will consider fishing the area, but only if it is an area that does not draw a crowd. I pass general fishing information to an extremely limited amount of friends (can count on less than one hand).
I kinda look down on cell phone use while fishing in terms of notifying others. I figure if I am out there and into fish and someone else in the area starts getting into fish and calls others, he is basically screwing me.
White Water Monty 2.00 (WWM)
Future Long Islander (ASAP)