http://info.shiftelearning.com/blog/personal-learning-networks

A blog post that defines PLNs, what a PLN is and what a PLN is not.

http://www.teachthought.com/pedagogy/what-is-a-personal-learning-network/

This blog provides a definition of personal learning networks (PLNs) as well as an embedded video explaining PLNs.

https://www.boundless.com/users/233409/textbooks/introduction-to-emerging-perspectives-on-learning-teaching-and-technology/learning-and-cognitive-theories-shorts-1/connectivism-15/connectivism-defined-95-14490/

A blog post citing Siemens definition of connectivism. It includes the basic principles of connectivism.

http://halfanhour.blogspot.com/2007/02/what-connectivism-is.html

A blog post by Stephen Downs that discusses connectivism including responses to others who have provided thoughts or feedback on connectivism.

http://www.learning-theories.com/connectivism-siemens-downes.html

This online article provides a brief description of connectivism and further suggested reading.

http://www.learning-theories.com/communities-of-practice-lave-and-wenger.html

This online article provides a brief description of communities of practice, what they require, and further suggested reading.

https://steinhardt.nyu.edu/scmsAdmin/uploads/006/677/CHAP12HOADLEY.pdf

This paper defines communities of practice and the importance they provide as a theoretical construct.

http://www.toknowpress.net/ISBN/978-961-6914-02-4/papers/ML13-368.pdf

This paper focuses on a literature review to achieve the goal of constructing a theoretical framework for communities of practice.

http://wenger-trayner.com/introduction-to-communities-of-practice/

This online article discusses the definition of communities of practice, how they might be used, where the concept began, how communities of practice are applied, and common myths.

http://er.dut.ac.za/bitstream/handle/123456789/69/Siemens_2005_Connectivism_A_learning_theory_for_the_digital_age.pdf?sequence=1&isAllowed=y

Siemens considers connectivism as an alternative learning theory to behaviorism, cognitivism, and constructivism. Siemans writes about the principles and implications of connectivism.

http://www.nwlink.com/~donclark/hrd/sat.html

A general handbook for those new to instructional design or needing to refresh on a topic.