Upload an UIImage to the dropbox 相關討論

http://stackoverflow.com/questions/5933674/how-to-upload-files-to-dropbox-ios

http://stackoverflow.com/questions/5409023/upload-an-in-memory-uiimage-to-dropbox-ios-dev

Upload a UIImage from iPhone to Facebook 相關討論

http://stackoverflow.com/questions/4885471/upload-a-uiimage-from-iphone-to-facebook

http://stackoverflow.com/questions/750328/documented-process-for-using-facebook-connect-for-the-iphone-to-upload-photos

https://github.com/facebook/facebook-ios-sdk