I think these tools are potentially of great advantage to the library environment, as people are keen to keep track of personal reading information. Instead of manually writing down about the books we have read, plan to read or are interested in locating to read when available, we can utilise social bookmarking tools. Eventually people will rely on social bookmarking because of its versatility and portability. Our own personal catalogue of books, films, games, genre, whatever our interests may be can be located in a few clicks. Review of material is an easy task with sites such as Shelfari, and the information is readily available for other people with "like" interests. Social networking has a very positive outcome for libraries in this respect. We can learn and build upon our interests and be aware very quickly of new innovations, reader material, films etc. instead of painstakingly googling with ineffective searches.