7. Add Borders, Backgrounds, and Change Layout When Printing

You can instantly jazz up your photos when printing by adding borders and backgrounds when printing your photos.

To do this, select the photos you wish to print, and in the Menu Bar select File > Print, then in the resulting drop-down menu select Customize.

A new view will appear with your photo in the center. The new bottom toolbar will let you add a theme to the photos, enabling you to print a matte around your photo. You can also change the background color, border, and layout. When you’re done editing your photos for printing, select the Print button in the lower-right corner.

8. Confirm Multiple Faces at Once

Faces is a great way to instantly see every photo taken of a particular person in your iPhoto library, but it’s a pain to train the facial recognition engine. Luckily, there’s a way to confirm multiple Faces at once. To do this, simply navigate to the person in Faces you want to confirm pictures of, then in the area labeled “Person may also be the photos below,” drag a box around the photos you want to confirm. Then, select the Confirm Name button in the bottom toolbar.

9. Include Location Information in Exported Pictures

Want to put your photos on Flickr, Facebook, or just send them to firends or family, but want to include the location of where the photos were taken? This is easy to do in iPhoto with the export options. Just select the photos you wish to share, then select File > Export. In the resulting window, ensure File Export is selected, then check the box Location Information in the Include section. When you press the Export information, the exported file metadata will include location information.

10. Change Key Photo in Album

In iPhoto, you can change the photo that represents an event in the Events listing. This photo is called the key photo, and it's very easy to set. When mousing over events, you may notice a photo that represents the event more specificaly than the one iPhoto automatically picks. To change it to the one your mouse is hovered over, press the space bar. When you remove your cursor, you’ll notice that the key photo for the event has changed. Additionally, you can do this when inside of an Event by selecting a photo and navigating to Events > Make Key Photo in the Menu Bar, or right-clicking on a photo and selecting Make Key Photo.

11. Merge Events

Sometimes, event photos split up during import because of the date contained in the metadata. To merge two or more events in iPhoto, hold down shift and select the events that go together, then right-click and select "Merge Events." You can also drag one album into the other.

12. Set up an External Photo Editor

Sometimes you may want to edit your photos with more powerful editing tools than iPhoto can provide. iPhoto can oblige by letting you set up an external editor. This means that when you click the edit button in iPhoto, it will launch the photo in another application, like Adobe Photoshop for instance.

To do this, head to iPhoto > Preferences (or press Command + comma). In the General Tab, under Edit Photo, there are three options: Edit in Main Window, Edit Using Full Screen, and Edit in Another Application. We’ll choose Edit in Application. A dialog window willpop up to prompt you for the application of your choice; navigate to the application and select Open.

13. Share on Facebook, Flickr, and MobileMe

Sharing photos with iPhoto ’09 is a snap. The application lets you share photos with MobileMe, Facebook, or Flickr.

To share your album with MobileMe, select an album, event, or a group of pictures, then select MobileMe to the right of the bottom toolbar. If you are already signed into MobileMe, a window will prompt you to select your sharing options. You can choose who the album is viewable by, whether they can download a few photos or the entire album or upload their own photos through a web browser, and allow people to add photos to the album via email.

Optionally, you can show the photo titles. If you click the Show Advanced button you’ll get two new options: the ability to hide the album on your MobileMe gallery page, and the ability to adjust download quality (if you have downloading enabled). Once you select the settings you want, press Publish. When iPhoto is finished uploading the photos, you’ll get a notification with a link to view the photos in your MobileMe gallery.

Sharing with Facebook is similar. Select the photos you want, then select the Facebook button in the bottom toolbar. You may be prompted to sign in with Facebook and allow iPhoto to post pictures to your account. Once you do that, publishing is a snap. Simply select the security of your album and press the Publish button in the resulting window.

The best thing about using Facebook to share your photos is that if you have someone tagged in a photo, that information will get published, too. And if someone tags something on Facebook, the information will synced with your Mac when you fire up iPhoto again.

To publish your photos to Flickr, select your photos, then select the Flickr button in the bottom toolbar. Once you sign in, you can select the security of the photos (i.e. viewable by only you, your friends, your family, or anyone) and the photo size. When you press Publish, your photos will be whisked away to Flickr.

When you publish your photos to any of the services, you’ll get new albums in the sidebar with the service name. The albums contain the photos you’ve published and if you ever want to add more photos to a published album, all you have to do is simply drag more photos to the album under each service.

14. Using Photo Feeds

A Photo Feed is an RSS feed for your photos. Many services such as Flickr and MobileMe Gallery give you a Photo Feed. iPhoto allows you to subscribe to these photo feeds, and just like an RSS feed, will download the latest photos from your friends and family right to an iPhoto library.

You can manually enter a photo feed address by going to File > Subscribe to Photo Feed (or by pressing Command + U) in the Menu Bar. You can subscribe to a Photo Feed by also going to a MobileMe gallery, opening a album, and clicking the Subscribe button in the toolbar. The result will be a drop-down asking if you wish to subscribe by RSS or open in iPhoto. Selecting iPhoto will check and download the photos in a Subscriptions section.

15. Copy/Paste Locations Among Multiple Photos

Adding location information to photos can be a pain as described above. If you want to shorten the time it takes to add location information to photos, then why not copy and paste the location amongst multiple photos?

To do this, simply press Command + C (or right-click Copy) on any photo containing a location. Then, select multiple photos needing the same location information and right-click. You’ll notice a new option: Paste location. Selecting it will do just that. Simple, but powerful, eh?