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Enjoyed this post by Donald Clark on his blog (link here)...

Discussion around social media and learning tends to focus on the networking effects; the fact that you are in touch with others and gain from that nexus of expertise and knowledge. While this is true, there is another dimension to social media that is pertinent to learning – it’s role in terms of actual learning and memory.

The fact that social media is an act of expression, reflection, elaboration, retrieval and practice is of interest to those of us who like to see concrete evidence for powerful learning and retention. I often feel as though I remember more when I use social media, indeed have stronger memories of the things I posted than the original exposure. Tweeting during a conference helps me consolidate my thoughts and capture key insights. Facebook helps me share resources. LinkedIn is a useful professional tool. However, it is blogging, such as this post, that is by far my strongest form of learning, as it involves a number of things that are all supported by researched learning theory, and which improve memory and recall:

Reflection
Generation
Elaboration
Retrieval
Interleaved and varied practice
Spaced practice
Imagery
Archiving

1. Reflection

In my experience, those active on social media get used to reflecting on their experiences. You get into the habit of reflecting as you know you are likely to express yourself later. The act of Tweeting, posting or blogging is also often an act of deep reflection and we know that deep processing increases learning and recall. This intentional attitude, in my experience, increases curiosity and the habit of taking notes and exploring things in greater detail.

2. Generation

Tweeting, posting or blogging is a self-generative act and we know that this contributes positively to deeper understanding, processing and eventually recall. In writing you are both retrieving and elaborating on your own experiences. A perfect example of generative learning is the correction and geneartion of Wikipedia content. All of thses forms of generation have proven benefits in learning.

3. Elaboration

The act of expressing yourself also helps elaborate learning, another proven positive effect on memory. With a Tweet, this may be the useful act of being concise and pithy. With Facebook, it may be a longer post but with a personal touch. With blog posts, there’s often a deeper form of elaboration through analysis, structured writing and conclusions. There may also be photographs, graphics, diagrams and links, all elaborating your learning, McGaugh (2000)

4. Retrieval

This is one of the most powerful ways to learn in terms of long-term recall. To use social media is to retrieve what your remember, often re-expressing it in the form of a Tweet, post or blog. This act of retrieval, according to recent research, is even more powerful than the original exposure. So social media expression may be more powerful than the original learning experience.

5. Interleaved and varied practice

Given the often fragmented nature of social media use, you often find yourself, not expressing a series of similar ideas but a more interleaved set of items. Varied practice, another well researched method of improving learning, is also likely as many who use social media, use its different forms, varying the way information is expressed. It is this variation and sequential interleaving of activity that is far more powerful than re-reading and repetition

6. Spaced-practice

Social media is not a designed form of spaced-practice, it is just a form of expression that takes place across time. Tweets, posts and blogs may be written minutes, hours, even days after an event or learning experience. Note that this is not a form of mere repetition, which we know does not result in significant gains in learning. It is spaced ‘practice’ in the sense of retrieved, re-expressed and generated knowledge. This is the form of spaced-practice that does increase consolidation and recall.

7. Imagery
An interesting adjunct to the core 'textual' nature of social media is the growing use of images and video. Wikipedia, that great social construct, one which I have not mentioned as a learning resource, but is clearly a monumental achievement and resource, now has accompanying images. But in posting images of places you've been, slides you've seen, objects you've seen in museums, you are reinforcing their presence and relevance in memory. For me, these act as 'cues' in Tulving's sense, which allow me to retrieve entire experiences in foreign cities, museums, art galleries and so on.
8. Archiving

Lastly, we have the idea that you learning has been archived. Those active on social media often observe that they go back to look at something that they Tweeted, posted or blogged some time ago. These items preserve valuable information and links, almost like an on-going e-portfolio. You find yourself consolidating your own knowledge by backward reference to your own blogs, posts and Tweets.

Conclusion

Rather than scoff at social media, we should celebrate its use when associated with learning. Many report great benefits in terms of learning through social media. There is even an argument for seeing it as a valuable component in CPD. What better way to learn that keeping in touch with experts and colleagues not just limited to those in your workplace or through the occasional training course. More than this it is clear that some well-researched principles of learning are congruent with social media use.

Evidence

Note that abundant evidence is presented for all these principles in learning theory, in one excellent book which summarises ten years of research in “Applying Cognitive Psychology to Enhance Educational Practice’. Brown P, Roediger H. McDaniel M.(2014) Make It Stick. Harvard University Press. When asked if there is one book in learning theory that summarises the findings of recent research into learning and memory, I always recommend this one book. For me, it should be essential reading for any teacher, lecturer or learner.