Reactive Extension (Rx) tutorial that is up to date

Question

I am quite interested in Reactive Extensions but I cannot find an up to date tutorial. I started with Curing the asynchronous blues with the Reactive Extensions for .NET but it

Answer 1

By far the best resource that helped me wrap my head around Rx is: http://www.introtorx.com/

I'm thinking this happens to a lot of people, but you can't find that site when searching on the keywords "Rx tutorial". Think somebody needs to add some tags to the site!