Rocky-Best source I've found is a book, "2002 American Casino Guide" by Steve Bourie. It lists at $14.95 and has a few coupons which help offset the cost. It has directions and descriptions of what you will find in the casino, e.g., how many slots, types and numbers of table games, restaurants.
But, it isn't a good idea to drive lots of miles to see if the casinos have or have had strikes. The only strike machines in Canada were at Casino Windsor and have been removed. All strike machines have been removed from Foxwoods, Mohegan Sun and the Atlantic City casinos.