I disagree with those saying that this is a good comparison. Telephone companies were not regulated because they were addictive, but rather because they are a public utility. Facebook possesses none of the characteristics of a public utility:
-Supplies an essential good or service
-Prohibitively expensive to replicate/enormous initial investment
-Supplies an essential good or service
-Prohibitively expensive to replicate/enormous initial investment
-Inelastic demand
-Region-specific
-Few or zero consumer alternatives