Must an author participate in social media?

Interesting discussions about the value of various social media (for authors) are going on.

Twitter

Facebook

Google +

blogs

websites

etc.

Must an author be visible on all of these, or can s/he pick and choose? After all, we are writers and we have the same 24 hours a day available to everyone else. But we also have to squeeze in Time To Write.

For a look at the experience of one writer who declared a 100-day Social Media blackout, only continuing with her website and blog, click on over to this article by Monica Valentinelli. posted on the Science Fiction and Fantasy Writers of America website.

Oh, and for you Nonfiction Monday fans -- the links to Nonfiction Monday posts on other blogs are being collected at Check It Out. -wo