iPhoto is a great tool for organizing your photos on your computer. But what happens when you want to put those photos on an online service like Facebook? Thanks to iPhoto’s Export Plug-in architecture, uploading your photos to Facebook is a breeze.

UPDATE: iPhoto ‘09 has built-in support for Facebook in addition to a large number of other features.  Order it here.

The first thing you’ll have to do is download the Facebook exporter for iPhoto from Facebook’s developer website. Once it is downloaded, double click on the installer package and follow the instructions to install it.
Once that is done, open iPhoto. Select the photos you want to upload. Once you have your selection highlighted, go to File, Export…

You will have a new tab available labeled Facebook. Click on this to bring up the Facebook Exporter pane. Here you will be able to set everything for your upload.

First things first, click on Login. You will be brought to a Facebook page asking you to log in and give permission to the Facebook Exporter tool to access your profile. Accept this and you can go back to the iPhoto Export window.
From here you can now add your photos to an existing album or create a new one.
Now you can go through your photos to add captions and even tag your friends.

Once you’re all done with that, click export and the photos will be uploaded to your account. Once they have finished upload, you’ll be taken to your Facebook account to verify the addition of the pictures to your profile.

Once you’ve approved the photos, they will be added to your account and you’re done!

Update:

So here’s something new I’m trying, it’s a video tutorial of this blog post.  Leave some feedback and let me know how you like it.