(in fact, some of those platforms seem to be using microworkers for recruitment purposes).

The author is confident that these limitations do not prevent the work from meeting its stated aims, as it is an explorative rather than exhaustive description of techniques and strategies.

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**A** Answer (a question on an answer site—see under Platforms—of a forum) & **B** Bookmark or Pin (quick share on MBS platform—see above)\
**C** Comment (Facebook, YouTube, forums, etc. comments) & **D** Data processing (counting, summarizing information)\
**E** Engage (usually unspecified web activity, e.g., “use the website for a while” or social media activity that cannot be categorized in the other labels) & **F** Follow (various social media, mostly Twitter)\
**H** Share (using the share function on various social media) & **I** Install (install applications to a smartphone or computer)\
**K** Link (add a given link to a comment, question answer, share) & **L** Like/Upvote (depending on platform: YouTube thumbs up, Facebook like, Reddit upvote, Google+ +1)\
**M** Upload or Download (Upload: YouTube videos, Download: various files) & **N** Connect/Friend (Depends on social media platform, e.g., on Facebook, connects to become friends)\
**O** Other (anything that could not be categorized otherwise) 