F# is a functional/hybrid language practical for working with "big data", "cloud", and IoT.
With Xamarin it could also be useful for "mobile" development.
F# Data: Library for Data Access
"The F# Data library implements everything you need to access data in your F# applications and scripts. It contains F# type providers for working with structured file formats (CSV, HTML, JSON and XML) and for accessing the WorldBank and Freebase services. It also includes helpers for parsing CSV, HTML and JSON files and for sending HTTP requests.
This library focuses on providing a simple, mostly read-only, access to the structured documents and other data sources. It does not aim to be a comprehensive collection of F# type providers (which can be used for numerous other purposes). It's also designed to play well with other libraries like Deedle, R Type Provider, F# Charting and FunScript."