The document discusses various social media platforms that libraries can use to engage with patrons. It describes Facebook as the largest social network with over 600 million users in 2011. Academia.edu is presented as a good option for connecting with researchers and academics. Delicious allows users to bookmark and share URLs. The document provides examples of how libraries are using Facebook pages and groups to engage with their communities. It also mentions other user-generated content sites like Slideshare, YouTube, and Soundcloud that libraries can utilize. Finally, it stresses that libraries need to meet patrons where they are on social media instead of expecting them to come to the physical library.

7. Folksonomy – non-hierarchical taxonomy by collaborative tagging