At least a cou­ple of these amaz­ingly geeky posters are derived from projects at Visu­al­Com­plex­ity, the site tak­ing on the task of visu­al­is­ing com­plex rela­tion­ships from all walks of life.

My favourites, or at least the most inter­est­ing, are those show­ing the evo­lu­tion of var­i­ous pro­gram­ming lan­guages; start­ing with COBOL back in the mid-1950s. There are also some note-worthy posters in the com­ments sec­tions — espe­cially this Peri­odic Table of Perl Oper­a­tors.