Quandl Founder Tammer Kamel wants to create a new Wikipedia for Numeric Data. Quandl has built a sort of "universal data parser" which has thus far parsed about 2.8 million datasets without anything from any data publisher. As long as they spit out data somehow (excel, text file, blog post, xml, api, etc) the "Q-bot" can slurp it up. The result is quandl.com as sort of "search engine" for numerical data. Quandl's bot returns data in a totally standard format. The idea with Quandl is that you can find data fast, and it is ready to use.
This article offers an introduction to and tutorial on aviationstack, a free, real-time flight status and global aviation data API used by more than 5,000 companies. It offers up to the minute information on flight departures, arrivals, historical arrival data, routes, airports, airlines, and more.