If you haven't already noticed, authors are now accessible:
...yadda yadda yadda.
And - wonder of wonders - they talk to readers in all these places.
I've had an ongoing conversation with the author of A Very Good Book while I'm reading it. And it has enhanced my reading experience - NOT because the author gives anything away. But because I can ask questions about peripheral issues, plot drivers and characterizations before I finish it.
People! This is HUGE!
Ask yourself what this means for you as an author.
Do you have enough knowledge of social media to avoid faux pas? Do you have the confidence (or interest) to hold a conversation with a reader who hasn't yet finished your book and might hate the ending?
It could be a very scary equation.
Or it could be awesomeness. After all, how many of us have had to walk away from rolled eyes, yawns and insensitive 'advice' from people who just don't get it? Well, imagine dozens, maybe hundreds of people who are suddenly immersed in your world and wanting to talk to you about it! (I'm assuming that only a portion of people who buy your book will actually seek you out personally - though that portion will be much higher if you're writing YA).
My advice? Find out where and how your particular audience uses the internet now and get familiar with it. That way, when its your name on the cover, you can also tell readers where to find you if they have questions.
It's like the world's biggest book club every day.
Your Turn: Does the idea of talking to readers excite or frighten you? How do you think you'd want to manage that process?