My favorite priest and former Pastor has a facebook page. They can use facebook for good and for their ministries.
First, a priest needs all the friends he can get. I can't think of a lonelier vocation.
Second, when moral questions arise during political discussions on FB, the priest's input is often one of the most interesting and informative.
Latin (lt): twitter.com
Spanish (es): twitter.com
French (fr): twitter.com
Italian (it): twitter.com
German (de): twitter.com
Portugese (pt): twitter.com
Arabic (ar): twitter.com
If you use Twitter and wish to follow the Holy Father, his handle is @Pontifex (English) or @Pontifex_xx, where 'xx' is the two letter code for the desired language shown above (e.g., @Pontifex_es for Spanish).
I remember the shocked feeling I got when I learned years ago that many young Catholic Brothers from my church were on Facebook and....yes.....my space...oh no. I wasn't using any social media at the time. There are awful things that happen on social media sites if not used responsibly. Used responsibly, it can be used for good and even great.