Search engine placement is an art in itself. But it doesn't hurt to submit your pages. Try a Web site like ineedhits.com. The company offers a free submission program but also has paid ones as well.
Make sure your META tags contain strong keywords. You'll be delightfully surprised when you type in a word and your site pops up in the top 10 of search engine results! It's a long, slow process, though, so don't expect immediate results.
A direct mail campaign is a low cost, highly effective advertising medium. There are plenty of targeted mailing lists you can purchase. Send out your info through the mail. You can get a lot in an envelope for just 34 cents.
Just send out some information about your Web design school. Most people think of direct mail as a fancy brochure and a slick-looking envelope. You can simply send out a sales letter and a response card. The response card would contain all of the info someone needs to request more information.
Thanks for writing and Happy Advertising!