Pharos is not a misspelling of Pharaohs. It is the name of the lighthouse of Alexandria, one of the seven wonders of the ancient world.
I selected the name first for our book club, then adopted it for this here blog. Of the remaining six Wonders, only the Pyramids at Giza outlived it. The lighthouse is symbolic of the Torch of Learning, and recalls the famed Library of Alexandria. The ancient world’s greatest repository of knowledge, the Library was founded by Ptolemy I in 283 BC and destroyed in the 2nd century AD. The name also suggested the scope of our book club: reaching back to antiquity and embracing the world’s great literature, as well as contemporary fare.
That's why I chose Pharos.