How do I merge my Yahoo! account with my Flickr one?
If you don’t sign in with a Yahoo! ID yet, head for the Merge page to get started. Basically, you have to sign in to the Yahoo! account you’d like to use (existing or new), then confirm that that’s the one you’d like to associate your Flickr account with. After you merge the accounts, there are a couple of things to bear in mind: • From then on, you must always sign in with your Yahoo! ID. • Some applications that you downloaded that relate to Flickr (such as our Uploaders) might not work anymore. If that’s the case for you, download a new version from the Tools page (or contact the developer of the application you’re using for an update).