Did you ever wonder what the difference is between a Seer and a Prophet? Here is a study which takes a look at 1 Samuel 9:9 (In those days if people wanted a message from God, they would say, “Let’s go and ask the seer,” for prophets used to be called seers.) The study uses other texts to compare and look at how the Bible defines a prophet.
http://adventbiblestudy.wordpress.com/2012/09/09/1-samuel-99-movement-from-seer-to-prophet/
Samuel's School of the Prophets 