The XML Soccer Ruby Library by Kavinder Dhaliwal is a Ruby Wrapper 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.
With the holiday weekend coming up in the U.S., avid divers may be making their way to their favorite spots. Dive.io is a web service designed for divers, so they can log their dives, share their favorite dive spots, and meet fellow divers. It's very specific, but it does its task quite well. It also has a nice API, allowing for integration of the service into, well, anything at all.
Statistical Me gives an online representation of how unique users are based on Australian government census data. The data, pulled from the Australian Bureau of Statistics (ABS), is also accessible through the Statistical Me API. The data upon which the statistics are pulled include gender, age, marital status, number of children, income, vehicles, rent/mortgage, and more. Users roll virtual dice until they uncover a profile that fits the user. Based on the results, users receive a graphical and numerical representation of their uniqueness as compared to fellow Aussies.
Here is an interview with Karthik Ram, who has co-created the rOpenSci project, which helps make REST APIs consumable by the R language. Developers can take note of this - R is one of the widely used statistical languages in the world, and has many GUIs for making advanced data mining easily available.