What is the ideal college major for someone pursuing a career in Web Development?

I’m already an assistant web developer but I still have A LOT to learn. I run my own ecommerce site and I hope it will really take off soon. I ultimately want a career in web development and I’d like for business to grow. What is the ideal college major for me?

Computer (or Management) Information Systems if offered, if not Computer Science
They offer not only the computer aspect of the web development, but a management and marketing side to it as well.