Flickr allows you to backup and sync photos and videos to access them from anywhere on any device. It has a 'Email Upload' feature which allows you to upload photos to your Flickr account via email. Flickr allows you to add tags when uploading photos to your account via email or phone. To add tags, just type 'tags' in the subject line or body of the email followed by the list of tags. You can add tags to your photo by 'tags:'. The rest of the subject line in is converted to the photo's title. If you are adding tags in the email body, then they must be at the beginning of a new line.