It's a start:

NEW YORK (CNN) — An online movement to boycott BP for its role in the Gulf of Mexico oil spill is growing at a rate of better than 25,000 names-a-day.

"I won't buy their gas any more. I won't patronize a company that's destroying our planet," New Jersey resident Patricia Jarozynski told CNN, one of 118,000 fans of the "Boycott BP" Facebook page as of this writing.

There is also this:

Anger is growing along with the size of the spill in the Gulf of Mexico. BP's environmental catastrophe has Public Citizen, the consumer advocacy group, also calling for a boycott against the oil giant, the first time it's taking such action against an energy company.
As I said before, and will say again and again, the scale of this catastrophe is going to shake the foundations of oil culture.