If you are not familiar with Lightroom’s web interface, it’s an excellent way to share collections of images with clients and friends so that they can make comments and add “likes” to images. This collaboration process can occur on any device that has web access via a browser (in other words, your clients and friends don’t have to have Lightroom or download any special viewing utility to see the collections that you share with them – they do however need an Adobe ID).
To view all of your synced collections within a browser, go to lightroom.adobe.com. Or, from within the Lightroom desktop app, choose Help > View Your Synced Collections on the Web.
Click on a collection to view the contents.
Click on an image to view it. When someone else views your image, they will be able to add “comments” and “like” you image (see how to share your Collections below).
To view a collection in the web interface from within the Lightroom desktop app, Control -click (Mac) | Right -click (Win) on any synced collection in the Collection panel and choose Lightroom Mobile Link > View on Web.
Synced collections can be public or private (they are private by default). To share your collection, click the Share button at the top-right of the Grid View.
Once you have made a collection public, you can easily copy and share the link as well as choose to Unshare at any time.
Note: since Lightroom mobile is a service, it is available only via membership plans. Lightroom 5 perpetual license does not include access to Lightroom mobile. Click here for the FAQ for Lightroom mobile.
Since I can’t figure out how to add an illustration in the comments, here is a screenshot of the little triangle under the name of a collect. When clicked, it displays the Custom Sort order that was asked about in the comments…