How can I upload my whole iPhoto-Library to flickr? Is there any plugin or other tool that I can use to upload my whole iPhoto Library to flickr? What do I need to do with that tool?
You can also do this natively with iPhoto, although FlickrExport by Connected Flow does offer some additional features. If you go to Preferences - Accounts you can add your Flickr account and it will allow you to share your photos and albums natively.