The author, William Annis, is also the creator of the twin project Scholiastae.org (see this page for further information).
Like Scholiastae.org, Aoidoi.org is a collection of classical Greek texts annotated "with notes on grammar, vocabulary (lots of vocabulary), text criticism and history" . However, while Scholiastae.org has prose texts, Aoidoi.org includes poetry.
A modified version of the Diogenes (TLG/PHI Reader) software is integrated in the website, providing access to two functions: Greek word dictionary lookup and word parsing.
A note in the project's home page dated December 2014 states that the project is "officially on hiatus".
As of March 2015, Aoidoi.org includes works by Alcaeus, Anacreon and Anacreontics, The Greek Anthology, Archilochus, Bion, Hesiod, Homer, Homeric Hymns, Ibycus, Mesomedes, Mimnermus, Pindar, Sappho, Simonides of Ceos, Solon, Theocritus, Theognis, as well as some anonymous poems.
Both in Scholiastae.org and in Aoidoi.org, texts can be viewed in the proprietary PDF format, but it is also possible to access the source code in LaTeX, by substituting the ".pdf" extension with ".tex" in the browser address bar.