These tutorials provides you introduction to WebServices. How to create server and client side using Maven.
These tutorials provides you introduction to Hibernate.
Hibernate is an object-relational mapping (ORM) library for the Java language, providing a framework for mapping an object-oriented domain model to a traditional relational database.
Tutorials Ubuntu related. Ubuntu is a computer operating system based on the Debian Linux distribution and distributed as free and open source software, using its own desktop environment. It is named after the Southern African philosophy of ubuntu ("humanity towards others").
Tutorials about Linux. Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution.