Yes.
Why? because B2B buyers are human.
B2B buyers value endorsments from the people they trust, their colleagues and peers. In fact, peer recommendations are the most trusted and most influential resources for B2B buyers when making decisions.
B2B buyers are social. They are people with facebook and twitter accounts. They tell their friends about the products and services they like (and don't like).
And yet... there is formula for a 'viral B2B marketing campaign' other than having an awesome product.