Yet another way to fear Web 2.0: maybe social networking services rot our romantic relationships. (full study, pdf).
Excellent title: "More Information than You Ever Wanted: Does Facebook
Bring Out the Green-Eyed Monster of Jealousy?"
Bonus points: the process can be addictive! The paper
So we see several fearsome internet memes combine: addiction, social subversion, and a hint at undermining the family. Perverse sexuality isn't evoked, but comes close.
(thanks to Ian Campbell)