If you play a lot of golf, tour-tips is a must have. I pay $100 a year for full access and even if you don't get to take advantage of all the picks he posts, you still get lots of tools to use for your own research. For example, you can see how each golfer has fared the last 8 weeks, how he has done on the course they are playing for the last five years....etc.
And most importantly, you can enter head to head golfers to see how they have fared agaisnt each other. For example, last weekend I took Tiger over Furyk for the tourney at -225 based partly on the fact that Tiger has beat Furyk 38-12 the last three years. Sure, there are plenty of other intangibles involved, but if those results are indicative of how there match-ups will generally go, Tiger should have been -325, so I concluded there was value on Tiger.