A website is a page or collection of pages that display information on the internet. Web applications, or Rich Internet Applications (RIA), are presented as either a website or simply a portion of a web site, but not every web sites is, or contains a web applications. A web application basically is a website that is used to accomplish some task other than display content to the masses. An application is intended for user interactions, transactions and, performing actual business functions. Many companies use web applications for time keeping, payroll, budgeting, analyzing information, tracking progress, etc. This list could undoubtedly go on forever, but you get the idea.