Wolfram Alpha and the web of structured data

The good news is, WolframAlpha can understand a query like "unemployment in Ottawa".

The bad news is, as you can see in the Result, that while it knows what data it needs to compute the answer, "(data not available)".

This is as clear an example of why we need open data as I can think of.  If you want your computers to start providing you with smarter answers, you have to give them better information to work with.

WolframAlpha provides two channels to try to address this problem: Contribute Structured Data and Suggest Data Sources.  You can also contribute individual facts, but that won't scale very well.