Once per entry!
example,
15 entries are in the comp. Each member of the website can place a single vote for each of those 15 entries.
Your ‘vote’ is actually a score from 1-10 with 10 being considered KICK-ASS top work! At the end of the comp the entry with the Highest score wins!
It just so happens I’m writing the auto-scoring code at the moment.
A.