[1] APML - Attention Profiling Mark-up Language: The open standard for Attention Metadata (The Edge Marketing Solutions 著, 版) <http://apml.areyoupayingattention.com/>
[2] APML / FrontPage ( 版) <http://apml.pbworks.com/>
[3] APML / APML-JSON ( 版) <http://apml.pbworks.com/APML-JSON>