The share link lets you send out the page by email or social media.
The collections options are handy, especially being able to quickly go out and in the search the collection this document is in.
Mentioning the printing features, I really like the pedigree and family group sheet print capacity. We were in dire need of that. You can't please everyone, Kathleen wants it to print photos in the pedigree chart. To do that we sacrifice showing as much data information.
WARNING: THESE TWO SITES STILL DO NOT BEHAVE WELL IN EXPLORER. GO TO FIREFOX OR PREFERABLY CHROME TO USE FAMILY SEARCH AND FAMILY TREE.
It is really kind of neat that this is all at no cost to everyone. I was giving some genealogy, family history, and FamilySearch help to a friend of our daughters in Iowa last week. She was really full of praise and thanks for this being available to her.
I might plug that as family tree is growing in number of users, especially novice users, the need for support is growing. If you have time and are willing to share your expertise, or be trained to This site has more information about how to volunteer. https://familysearch.org/volunteer