If you're interested in Apple's new programming language announced at WWDC, there are a variety of resources available online now. Here are nine resources to help you get going:

FIrst off, since it's from Apple, you can start with the official Apple Swift site. From there you can pick up Apple's Swift book, The Swift Programming Language free in the iBooks store and jump in if you like. Otherwise there are more resources below:

Swiftlang.eu is unofficial but looks pretty useful.

Not only does iOS Blog have a Best Practices Guide, but also how to use Objective-C classes in Swift guide, in case you need it.

LearnSwift.tips is a curated list of resources by skill level:

Lots of lists of links mention Ray Wenderlich's tutorials and he has a variety of them on his site.

A cheat sheet (PDF link) also from Ray Wenderlich for reference in case that's all you need.

GitHub also has a nicely filled in reference page.

You can also check out the trending GitHub repositories using Swift.

Please let me know in the comments if you have any other useful resources!