The Footnote HP gets it name from the way that Hypertext has been used in
the past. A Hyperpoem can have a number of subpoems that run in parallel,
i.e. there is no set order of reading. In a sense, the subpoems can be seen as
footnotes of a main poem, or of
each other.
From: The E-muse:Symbiosis and the Principles of Hyperpoetry