For your initial reaction post, focus on what constitutes a collaborative interaction.

• Are there other collaborations that you can think of, for which there is a technological help?
• Why is it important to understand how people collaborate?

Do include some of the learning from the mandatory reading part and connect with one or more of the articles listed.  Make sure you include references/sources in your posts.

https://www.interaction-design.org/literature/book/the-encyclopedia-of-human-computer-interaction-2nd-ed/computer-supported-cooperative-work

http://egerber.mech.northwestern.edu/wp-content/uploads/2013/10/2014_CrowdfundingWorkCommunities_CSCW_Accepted.pdf

http://fid.cl/courses/hci/collaborative/lda_quality_camera_ready.pdf