An article in eSchool News--How to build a Professional Learning Network--(January 16, 2013) supports PLNs because they give teachers global access to thousands of their peers who can share ideas and provide answers to questions related to teaching.
There is a link in the article to a free online course that includes four modules, "covering topics such as PLN basics, ethics and privacy, networking, social media tools, and sustaining a PLN." The course was "developed by Torrey Trust, an instructional designer and teaching assistant with the University of California, Santa Barbara, Department of Education."
What is your experience being part of a PLN?
Why do you think teachers should participate in PLNs?
When I was teaching in Kayenta Arizona as a Title IX Remedial Reading Teacher I had a informal Professional Learning Network with two fifth grade teacher friends of mine. We'd get together sometimes at lunch or after school or even outside of school and discuss different teaching ideas.