Weblogs, or blogs, emerged in the late 1990s on the web, quickly becoming a new way to communicate ideas, opinions, resources and news. Since that time, the community of blogs has grown to encompass specific subject areas of study and research. This book briefly discusses the history and background of weblogs, how to create a weblog, its advantages and applications in library and information centers. Why and how to use weblogs in providing the library's services and the method of evaluation of weblog. The Key feature of this book investigate and evaluate library weblog available on internet. .To examine the availability of library weblogs on the web. To find out authority and subject coverage of library weblogs and to determine their relevancy. .To understand the way of presentation of contents on the weblogs and its user friendliness. .To trace out the authenticity and scope of library weblogs available on the web. .To know updating frequency and arrangement of library weblog. .To find out the navigation feature and arrangement of hyperlinks. .To trace out, who are the intended users?