Is there a guide available for determining pedal/cleat combinations? I bought a Kona Coiler mountain bike at an estate sale, and the sellers didn't have any information about the pedals on it. I'm looking to buy some shoes and cleats, but I'm not sure what to buy because I haven't been able to identify the proper cleats for the pedal.

When I've ridden mountain bikes in the past, the pedals were the "egg beater" type, which these pedals definitely are not.

If someone can identify the pedal type from the photo, that would be helpful. Even better would be a link to some sort of guide I can use in the future to identify pedals and match them to the appropriate cleat.

Here are the pedals in question (the nickel is there for scale):
Those look like Shimano mountain SPD PD-M545 pedals:



Looks like a pretty good match to the picture on the Shimano site, but if you don't see a Shimano logo on them, they could be third party compatible pedals.

The cleats look like this:



I'm not aware of a guide that compares all pedal styles, but there are not that many pedal types in common use and most styles are different enough from each other that you can easily tell the difference between them.