Selected Web Resources on Antoninus Pius

Anthony Birley's short biography of Antoninus Pius
Richard Weigel's Life of Antoninus Pius at DIR's On-line Encyclopedia of Roman Emperors
Antoninus Pius: Role Model for Rulers (Doug Smith); Antoninus Pius Caesar: The politics of succession on coins, by Doug Smith.

Portrait of Antoninus Pius (Met); Portrait of Antoninus Pius (Glyptothek, Munich); more portraits of Antoninus Pius (Erlangen, Germany)
statue of Faustina the Elder (Getty); portraits of Faustina the Elder, scroll down to Faustina I (Worlds of Roman Women); more portraits of his wife Faustina the Elder (Faustina Maior) (Erlangen)
coins of Antoninus Pius (Lawrence University, Bearers of Meaning); more coins of Antoninus Pius or his wife Faustina (Virtual Catalog of Roman Coins): click on Antoninus Pius or Faustina on left sidebar.
Temple of the Deified Hadrian (Field of Mars, Rome), built in 145 by Antoninus Pius for his adoptive father; now the Italian stock exchange; detail of the entablature; description of the temple (Platner and Ashby); more images, scroll down to Hadrianeum (Indiana University); many images of the temple (Perseus); more images, including a reconstruction of the temple (Maecenas)
Temple of Antoninus and Faustina in the Roman Forum (begun 141); more images of the temple (Maecenas); more detailed article with images (Platner and Ashby); an up-to-date scholarly article on the temple (Lexicon Topographicum Urbis Romae)
Mausoleum of Hadrian, Rome (Maecenas); description of the Mausoleum (Platner and Ashby); images of Castel St. Angelo (Perseus); Castel Sant'Angelo National Museum
(Mausoleum of Hadrian, completed by Antoninus Pius in 139)
Base of the Column of Antoninus Pius (Vatican Museums)
The Antonine Wall in Scotland (Athena Review)

Biography of Antoninus Pius by Julius Capitolinus (in English)
Marcus Aurelius' remarks on the Character of Antoninus Pius, from the Meditations
Inscription honoring Antoninus Pius found in the fireman's barracks at the port of Rome, Ostia (Lacus Curtius)
Inscription honoring Antoninus Pius and recording the building of a road near the Antonine Wall (Athena Review); milestone found near the Antonine Wall (Athena Review)