Grid Computing with GridSphere Jakub Dziwisz, Pawel Plaszczak Grid users want to access Grid resources in a graphical and easy, yet secure way. For them Grid portals are the only reasonable way to use the Grid. Grid portals reinforce code sharing and reusing. One of most popular Grid portal solutions is GridSphere which uses portlets as pluggable user interface components that provide a presentation layer to information systems. Interoperability between portlets and portals is enabled by Java Specification Request 168, the Portlet Specification. GridSphere provides both a portlet container, a collection of core portlets and an advanced user interface library that makes developing new portlets easier for application developers. But, do GridSphere portal and Grid systems have more in common than just name? We will try to answer this question at the seminar.