Brand, Identity, Logo?

This is my first blog! I feel so good about this! It's like rolling up a fresh pair of socks. You know what that feels like!

There is always some confusion on the difference between brand, identity and logo. I thought it might be a good idea to start with defining each.

What is brand? – The perceived emotional corporate image as a whole. What is identity? – The visual aspects that form part of the overall brand. What is a logo? – A logo identifies a business in its simplest form via the use of a mark or icon.

How would you define each in your own words? Comments are welcome.