Resistor symbol with a dot
The dot is not standard.  It is a marker on the resistor symbol to indicate pin 1.  The only reason I can think of when this is useful is when using the circuit for spice simulations so that you know what side to probe for pin 1 or the orientation for current.

Update:
Asked around some more and found someone who does this on schematics!  The answer they gave me as to why: "it helps when debugging the board".  They place the dot on the printed circuit board as well as in the schematic.  That way when they are debugging they can quickly determine which side of the resistor they are probing without having to trace the line.  

Avoid this style.  You will confuse people!