Do you follow FatWallet Finance?

Those guys are always involved in complicated financial schemes, but one thing I’ve learned from them is that there is a vast array of services you can subscribe to to check your credit. The best services provide daily updates of your record from all three bureaus and also report your FICO based on those records. Many services don’t provide your actual FICO, but rather a score based upon the bureau’s reverse-engineering of the FICO algorithm. Experian calls their version the Vantage Score. The cost of these services vary, but you can find some services, usually offered as an account holder benefit, for much cheaper than the "free" credit service provided by the freecreditreport.com people. Discover has a service, but the cheapest one I’ve found is National City Identity Protect. They offer daily reports and a "FAKO" score for two people living together (and possibly anyone in the household) for $14.

I agree that Discover tends to have pretty good service, but people generally rate AMEX as the best.
Here’s the link to Fatwallet Finance