I'm wondering what's the difference between Web Development (HTML, CSS, PHP/SQL, JavaScript) and this thing called Web Application Development (that I just heard of).

The reason is that I am majoring in Web Development and am thinking about transferring to a University (possibly SDSU), and in their Computer Science field I found this program that just launched which is the Web Applications thing. What exactly is it?

Does anyone in Southern California know of any good (not ITT Tech, DeVry, etc) colleges that have good Computer Science/IT programs?

Thanks.