How to make new shared album?
Making shared album is really easy. First of all you have to make a new album. Go to your profile if you are logged in. Click on photos and click on create album or click albums and click on create new album from there. (Related: Awesome games on Facebook)
You'll get a popup window from where you can choose photos from your computer’s hard drive. Choose photos you want to upload to your new album.
When you click open you'll see progress bar about uploading photos. While your photos are being uploaded give the album a name and description. After photos are uploaded click on Post Photos. (Related: Keyboard shortcuts for Facebook, Google+ and Twitter)
After clicking on post photos Facebook will redirect you to your newly created album from where you can click on Make Shared album button to add contributors to your album.
If you want your friends can also add their friends as contributors then check the box before contributors can add their friends as contributors. Change privacy of album according to your needs and click on save button.
You'll see names of contributors under name of album.
How to add contributors to existing albums?
Just open existing album and you'll see make shared album button at top left corner. Click on that, add contributors, change privacy according to your needs and everything is done.