[TLightful]

I imagine it's horses for courses.

I detest / deleted Facebook with an ungodly passion ... but I can see how some people find some use for it.

I like twitter, apart from the political loons ... but, of course, everything is a function of what you put in and who you follow.

To answer your question: timeliness, access to "top" thinkers, a bubble created and curated without baby pictures.