MySQL is an open source (free & available for anyone to use) databasing system. What this means for your website is that any information that is used in multiple locations, required for calculations, or collectes just for convenience of displaying can be easily stored for later use. Among other features, databasing allows you to associate links to related information and is not restricted to looking like a spreadsheet.
Text, photos, documents, numbers, links, and more can all be stored inside a database, or a reffering link jus the same.

Consult with Doubledub Imaginations to determine if a database is necessary for your web application.
Determine what kind of information you would like to store.
Consider having us develop administrative access pages to easily modify database content.
Most importantly, think outside the box. Most applications where databases are used do not show the information in spreadsheet format. Rather, the database simply acts as an organizer for what would otherwise be scattered and repetitive information.