Email

How do you email to someone you only know through their blog? 

 So far I’ve only gone looking for an email link from a blog in two cases, where I really should be able to figure the email out if I go looking in my ancient email folders.  Still, it seems people expect you to be able to contact them, but don’t make the info easy to find.  Is there a secret handshake I don’t know about?

 Alice