Saint Isidore of Seville, Patron of the Internet, Pray for Us
Serge of A conservative blog for peace today links to A Prayer before logging onto the Internet:

Almighty and eternal God, who created us in Thy image and bade us to seek after all that is good, true and beautiful, especially in the divine person of Thy only-begotten Son, our Lord Jesus Christ, grant, we beseech Thee that, through the intercession of Saint Isidore, bishop and doctor, during our journeys through the Internet, we will direct our hands and eyes only to that which is pleasing to Thee and treat with charity and patience all those souls whom we encounter. Through Christ our Lord. Amen.