It's nice when you receive email from someone who has found something interesting enough on your blog to write. Sometimes, it could also be a query for place locations or information sources.
When I first started blogging, I was pretty sure that I would be the only one reading my own writing. Thus I did not see it necessary to even put in a profile picture much less an email address. Did not see the need to, afterall I was of the opninion that who would find my blog among the millions anyway, let alone write to me.
Never saw the importance of Google Search too, but these days this would be the first place to look. There are so many things on the Internet that you are honestly spoilt for choice. Heck, even looking up diet pill reviews will yield so many sites, which can be rather frustrating and time-consuming going through them. That's what I've been told.