THIS IS SUNRIVER Free photo / pictures / powerpoint tips http://thisissunriver.blogspot.kr/

Font Awesome The iconic font and CSS toolkit https://fortawesome.github.io/Font-Awesome/ https://fortawesome.github.io/Font-Awesome/license/

Mythbusters Demo GPU versus CPU https://www.youtube.com/v/-P28LKWTzrI&autoplay=1&rel=0 1m 33s

Free (do whatever you want) high-resolution photos. https://unsplash.com/

Dynamic Dummy Image Generator 테스트용으로 사용할 가짜 이미지를 만들어주는 사이트 http://dummyimage.com/

Swift 3 API Design Guidelines https://swift.org/blog/swift-3-api-design/