When I took IST 511, there was a time during the course when many individuals relevant to our future field visited and discussed about their work/occupation. One of them was a middle school librarian and what she said about advocacy in her library floored me. I still remember it today because it is so true and it involves the students, as it should, every step of the way.
What she said was that an incredible way to advocate the school library is for the students to do it. How? By giving them a reason to. By having relevant events or posting remarkable works that students have completed, they are more inclined to show and tell their friends, teachers, parents, siblings, grandparents, etc. And then what? These people, the community members, tell others about what their children, grandchildren, students, etc. are doing in the library and sometimes it gets to the principal or other administrators, which works wonderfully if the library needs support financially for a program or in further developing a collection relevant to the school curriculum.
answer.the.door 
She gave you and the class very good advice, Rachel. It’s an excellent way to have students take ownership of their own library.
Great point! If we do our jobs well, the students will want to share the things they’ve done in the library that they’re proud of. If we do our jobs well, advocacy isn’t difficult at all — the positive results speak for themselves! Not to say that we don’t need to push our positive results to the forefront now and then, but having students be excited about what they do in the library will definitely carry advocacy far.