Other
The Gnostic Society Library: The Gospel of Philip
The complete text, it is also the earliest known version of Philip's gospel. It was part of the Nag Hammadi library.
New Advent
Catholic Encyclopedia: St. Philip the Apostle
This site from The New Advent describes the calling and life of St. Philip, one of Jesus' twelve apostles. This site includes links to sites with related information. Please note that ?The Catholic Encyclopedia? is a historic reference...