The XML Soccer .NET .dll Library is a .NET library tutorial for the XML Soccer API. The XML Soccer API is a web service that collects soccer data and makes the information available in XML to subscribers of the service.
Here is an interview with Scott Gimpel Founder and CEO of FantasyData.com. The site used to be known as NFLdata.com and provides NFL statistics. The site claims to have almost 25 million API calls /month during football season with over 300 developers working with it's API.
The Foundation Center, a leading provider of philanthropy data, analysis, and training, has just announced the launch of Foundation Stats, a brand new online tool that generates tables and charts from a vast collection of data about the U.S. foundation community. In addition, the Foundation Center has also provided a Foundation Stats API allowing developers programmatic access to the philanthropy data available at Foundation Stats.