The basic tools of online communication have been widely used since the World Wide Web was launched. However, in recent years, a number of new, simple and efficient tools have appeared, causing a breakthrough in content production. The web 2.0 tools ensure the truly democratic participation of users in the creation of online content, thus foster further progress and expansion in this area. Networked services are increasingly used by young people perfectly familiar with cutting-edge web technology. For these young users, the Internet is a natural environment where they live and move around at ease. They use collaborative sites such as rss, blog, wiki, social networking, video and photo-sharing extensively. The philosophy of the web 2.0 - inviting users to become content producers at the same time - has been adopted in the library environment as well, urging libraries and librarians to take on new tasks and attitudes.