I'll be interested to see how this works for you. The whole MySpace vs. Facebook debate aside (they tend to draw differing crowds, or so I've read), it is certainly possible to create a page for yourself on any number of community spaces out there. The question is, should you? I am wondering if it is worth keeping all of them (including blogs) up in the long run vs. using that time for other things (writing, family, life, etc.).

I'd also be interested to know if 1) other authors have seen similar sales jumps from getting on MySpace/Facebook; and 2) if there were other contributing factors to her increase in sales besides getting on MySpace (good reviews, more marketing support from the publisher, etc.). I'm wondering if she is the exception or the norm, and how strong the cause and effect is.

I admit I've thought about doing the same thing down the line, so I will happily let you be the guinea pig on this one. :)