The diffusion of innovations according to Rogers (1962). With successive groups of consumers adopting the new technology (shown in blue), its market share (yellow) will eventually reach the saturation level.
<a href="//commons.wikimedia.org/w/index.php?title=User:Tungsten&amp;action=edit&amp;redlink=1" class="new" title="User:Tungsten (page does not exist)">Tungsten</a>
12 October 2009 (upload date)
self-made based on Rogers, E. (1962) <i>Diffusion of innovations</i>. Free Press, London, NY, USA.