Rodrigo Reis writes about the MVVM pattern combined with a flow controller and he uses Swift for his examples.
This post is going through and detaisl some the common syntax you will encounter when reading about, and learning to write concise code with Swift.
There is quite the discussion about Swift classes being final (i.e. not subclassable) by default. This article nicely summarizes all the different opinions about this.
Krzysztof Zabłocki with a protocol-oriented approach to logging that hides the existence of a singleton and supports writing fully testable code.
Swift 3 gives a much prettier Grand Central Dispatch API. This article by Roy Marmelstein brings you up to date.
Mark Dalrymple of Big Nerd Ranch gives an introduction to the #selector syntax.
Arkadiusz Holko wrote a text view for iOS 9 that supports replacing text with emojis so that you can bring this feature to your users even before iOS 10 ships.
Facebook has released a Swift version of their SDK as a beta which supports Facebook Login, Share and Send Dialogs, App Events and the Graph API.
The folks at wire open sourced their iOS app and although it is not written mainly in Swift, it does contain about 15% Swift and might be a good example on how to mix Swift with Objective-C.
As of Wednesday, no more source-breaking changes will be accepted for Swift 3. This mail by Ted Kremenek explains what will happen beyond that date.
Dan Cutting is talking about emerging patterns and idioms in Swift.
Enhance your app / service with a photo editor. It's fully customizable and SDKs are available for iOS, Android and HTML5.