[1] [CITE[APML - Attention Profiling Mark-up Language: The open standard for Attention Metadata]] ([[The Edge Marketing Solutions]] 著, [TIME[2009-10-04 03:03:23 +09:00]] 版) <http://apml.areyoupayingattention.com/>

[2] [CITE[APML / FrontPage]] ([TIME[2009-10-25 10:44:47 +09:00]] 版) <http://apml.pbworks.com/>

[3] [CITE[APML / APML-JSON]] ([TIME[2009-10-25 10:45:57 +09:00]] 版) <http://apml.pbworks.com/APML-JSON>