Popularity is too ambiguous, current popularity even more so. Any index can be considered a popularity index. TIOBE is more like a long term impact kind of ind

Popularity is too ambiguous, current popularity even more so. Any index can be considered a popularity index. TIOBE is more like a long term impact kind of index. It's good enough if you want to understand familiarity with the language or penetration of the language. If you want to know which languages people hear about currently, check out PYPL index [1]. And of course job market is an index of languages used today. More insight can be extracted from combining metrics, like adoption speed index. [1] http://pypl.github.io/PYPL.html http://pypl.github.io/PYPL.html