Blogging, facebooking, twittering- Real Writing or Not?

I happened upon my former Skirt! Magazine colleague Kelly Love Johnson's blog about what constitutes "real" writing, or not. I've not succumbed to twittering and don't waste time worrying with my facebook account (though it is fun to see what everyone's up to!). But blogging? Her comment about blogging vs. working on an essay for publication in Actual Print- worth consideration.

I guess I'm especially thinking about this today since my turn was up at the Southern Writers' blog where I'm surrounded by some very accomplished writers and would hate to look like a poor stepsister! So I spend a lot of time on those blog entries, which are often as long as an essay and heaven forbid if I left a typo-- or worse-- in that esteemed company.

So. What do you think? Leave me a comment, anonymous or not:
What makes writing legitimate these days?