Amine Bousta is a French Senior Technical Analyst in Groupe Open. He holds a French diploma of Computer Engineering (equivalent to master's degree) and a Technology Research Diploma in Artificial Intelligence (neural networks applied to e-commerce). Specialized in JEE, he monitors and studies most of the related technologies and open source products in order to apply them as solutions for various companies' needs. From 2007, his technology watch on open source Java Portal Engines led to Liferay Portal as the most flexible and complete free portlets engine. The Liferay Community Site gave him the opportunity to meet Dr Jonas X. Yuan and read his previous publications, then become the technical reviewer of this book.