Illustration 1
Graphical overview of snapshots of the Steam launch page archived by Wayback Machine
Comment: The total number of snapshots is 370,490.
Illustration 2
The Steam launch page (2010)
Comment: Archived by Wayback Machine3.
Illustration 3
Example of how data can be visualized
Illustration 4
The website for the Salien game after the conclusion of the corresponding summer sale
Comment: cf. the Steamcommunity website7.
Illustration 5
A selection of memes about the Steam Summer Sales from KnowYourMeme
Illustration 6
The public Steam profile page of user evo1x
Illustration 7
Requirements to obtain the Pillar of Community badge
Comment: Cf. The corresponding forum discussion on the website Boardgame geek10.