Attention Profiling Mark-up Language
Attention Profiling Mark-up Language (APML) is an XML-based markup language for documenting a person's interests and dislikes. == Overview == APML allows people to share their own personal attention profile in much the same way that OPML allows the exchange of reading lists between news readers.
Source: Wikipedia — Attention Profiling Mark-up Language (CC BY-SA 4.0)