The Reactive Extensions (Rx) is a library for building async and event-based programs using observable sequences & query operators. Developers can use Rx to represent asynchronous data streams with Observables and query those data streams using LINQ operators. Rx can  utilize Schedulers to parameterize concurrency asynchronous data streams.
 
Simply put, Rx = Observables + LINQ + Schedulers.
 
Rx comes in many flavors and there are a lot of resources out there. Microsoft has open sourced this interesting and powerful way to work with async data streams so that we can all contribute and benefit from its strengths & weaknesses.Matthew Podwysocki (@mattpodwysocki), Microsoft ‘Open Sourcerer’, demystifies the Rx realm and opens our minds to new ideas.
Resources


Reactive Extensions on Codeplex - https://rx.codeplex.com/


Reactive Extensions on Github -  https://github.com/Reactive-Extensions/


Intro To Rx Book -  http://www.amazon.com/dp/B008GM3YPM/


React and Rx Examples - https://github.com/Reactive-Extensions/RxJS/tree/master/examples/


community resources - http://reactivex.io/community.html


reactivex.io - http://reactivex.io/


tutorials - http://reactivex.io/tutorials.html


stock server - https://github.com/Reactive-Extensions/RxJS/tree/master/examples/stockserver


Rx twitter - https://twitter.com/ReactiveX

Microsoft Github List - https://microsoft.github.io/

Panelists


Erik Isaksen - UX Engineer at3Pillar Global


Rob Simpson - Senior Front End Developer atCapco


Nick Niemeir- JavaScript Agent Engineer atNew Relic


Danny Blue - Front End Engineer at Deloitte Digital