Awesome
Facebook ID Finder
This application is based on the Google App Engine Platform
Purpose
Developers or normal people often need to find the numerical ID of a Facebook Page/Person either for adding a like button or several other reasons.
This can be done quite easy with a variety of ways but all of them require more than just a simple click.
This application uses a simple form to submit a url or a string and retrieve the Facebook ID if a corresponding page or person exists for that url.
More public data will be available as long as development on this little tiny app continues
How it works
Gets the submitted url/string and then queries Facebook Graph API to find the ID