We are entering an era of Rich Internet Applications (RIA), and many enterprise development managers are facing the dilemma - which way to go - remain with tried and true Java or .Net or experiment with such newcomers as AJAX, Flex, Silverlight, or JavaFX. While Internet brings a lot of noise where 'it's cool' is the most popular definition, this presentation is an overview of what's out there on the enterprise RIA market. We'll talk about pros and cons of using various techniques and technologies for development of the front end for complex distributed systems.