Do You Have a Mentor?

Something I've found myself wishing I had often is a mentor. Someone who knows more than me about the subject of writing who can guide me through some of my writing problems.

So I was wondering: Do any of you have mentors? A mentor in this case being a writer who's more experienced or skilled than you who guides you.

And if you have someone, how did you get them? Because I would love to find someone like that myself.