What would draw you to rally or make you speak out in a crowd?

ill need more info in order to answer yer ?

im sure you mean write *

  this riddles' answer is library.

  the "leaves" are a reference to the books' pages that the library contains; the branches are a network of libraries that connect multiple libraries' collections, resources, and items in a system of a common database, integrating them; the branches' organization are a useful management tool for coordinating the multiple collections many libraries have.

you did not put the article. so i cannot answer the question.