www.sososwift.com has been my go-to. Beware, some of the vids are probably out-dated. It was my experience that every version of XCode6beta that came out broke

www.sososwift.com has been my go-to. Beware, some of the vids are probably out-dated. It was my experience that every version of XCode6beta that came out broke my app with syntax or object-access type changes. I just downloaded XCode6GM and a bunch of stuff I was doing with "as NSArray" forced me to do "as? NSArray". And self.navigationController.navigationBar needed a "?" appended to controller, otherwise you'd get the very confusing build error saying something like "navigationController has no member called navigationBar".