Howto find blogs from email addresses?
I know many folks try to find emails form blogs but, I'd like to do the opposite.

For example, if I have someone's gmail email address, could I find out if they have a blogger account? a word press account?
Howto find blogs from email addresses?
===

I know many folks try to find emails form blogs but, I'd like to do the opposite.

For example, if I have someone's gmail email address, could I find out if they have a blogger account? a word press account?