Flickr has a new feature where friends and family within your yahoo, microsoft, or gmail address bookes can be easily found and added.
Adding members from you webmail accounts to your flickr account is simple.
1. Visit the Flickr Find your Friends page
2. If you are not currently logged in, you may need prompted to log into your flickr account.
3. From the Find your Friends page, you can import from your Yahoo account without logging in again. This is because yahoo integrated flickr after it was purchased.
4. Visiting the import from Microsoft Live Mail or Gmail links will require you to log into the respective service.
5. Once your webmail address book is scanned, you can add any of the contacts that are found to have flickr accounts.