Step 1. Select the photos you want to publish.
You can select several photos, an entire event or album, a tile on the Faces corkboard, or just one photo.
Step 2. Choose Share > Flickr, or click Share on the iPhoto bottom toolbar and then click Flickr in the menu that appears.
Step 3. Choose whether to add the photos to an existing set, create a new set, or just toss them directly into the photostream.
Step 4. Choose publishing options, then click Publish.
The Web option is best if you don’t anticipate wanting to order ...