In my experience, visualization of data is the most promising application of computer technology and yet it is often the most disappointing. I've usually seen either really horrible graphic treatment or beautiful graphics which don't have anything to do with understanding the data. This article presents an overview of tools, applications and techniques for visualizing data in charts and graphs which look really promising. Among other things both free and commercial chart tools, services, desktop-applications and web-based solutions (Flash, JavaScript, CSS) — you can use them on your server are presented.