The Wikipedia Library is hosting the #1Lib1Ref campaign. The object is to get every librarian to add one reference or citation to a Wikipedia article.
Here is a roundup of links to videos related to the campaign:
A video introducing #1lib1ref
A video created by Wikimedia Deutschland und Simpleshow Foundation on the topic of adding references.
A video featuring Alex Stinson, GLAM-Wiki (Galleries, Libraries, Archives, Museums) Strategist at the Wikimedia Foundation, and Wiki-librarians Phoebe Ayers (Massachusetts Institute of Technology), Kelly Doyle (Wikipedian in Residence for Gender Equity, West Virginia University Libraries), Merrilee Proffitt (OCLC Research), and Jessamyn West (Vermont librarian and technologist) discussing libraries and Wikipedia.
image credit: By OlafJanssen (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons