Flickr app for iOS makes it very easy to upload your iPhone photos to your Flickr account. If you haven't yet downloaded Flickr app on your iPhone, download it now from the App store and then follow the steps given below:
PicBackMan is a free photo/video uploader that helps you to keep your memories backed up to your favorite online services.
Users in 130+ countries have backed up.
... an excellent job of uploading more then 300GB of photos to 2 different services