Suggest a Resource

The resource database will never be complete, new resources and hidden gems are yet to be discovered by the product management community. Please take a moment to suggest one or more of your favorite resources so others can use them as well.
What is it? Enter a brief name that describes the resource.  If it has a name or title, please use that.
Where can we find this resource? Please enter a URL that other product managers can use to learn more about this resource.
Tell us what it is... Enter a brief description. Feel free to cut and paste any test from the resource's web page.
Tell us why you think this resource would be of value to the product managerment community.