"To use the API, please drop us a short mail and we will provide you with a developer key and the documentation. Note, that Plazes APIs are for non-commercial use only."
What’s the point of using a web API if you can’t make money with it? Isn’t this the best way to guarantee you’re not going to have much traction? I don’t get it. There’s more to web application integration than toying with gizmos in the margin of your blog.