**2. Information search in libraries**

User expectations for library resources have changed dramatically; individuals have become too impatient to search in multiple databases to access desired information. Library patrons are challenged by alternate search interfaces that can discourage the full use of the given resources. Information overload has become another issue; users have online access to a variety of subscribed databases, but they have limited understanding of what they are and how to use them. Therefore, librarians are actively seeking better ways to integrate and present information [1].

Searching for sources in the library cannot be discussed without addressing the impact of the Google search engine. Google has become a powerful presence in the life of all library users. It is the most popular search engine for queries about daily issues and for academic needs. It empowers library visitors to search for their academic information needs, within an easy and popular interface [2]. In libraries, some consider this an obstacle, and some see it as an opportunity for innovations and improvements. One thing is certain: Google redefined the search experience, and libraries should acknowledge this.

In 2004, Google launched Google Scholar, a tool for discovering scholarly information. Google Scholar is a search engine for academic articles, theses, books, abstracts, and court opinions from academic publishers, professional societies, online repositories, universities, and other websites. This free resource, with its basic and familiar interface, has the potential to serve as a scholarly metasearch information engine [3, 4]. Google Scholar has received mixed receptions from the librarian community. It has some advanced search features, but it provides no interface for refining the results. Users can set preferences such as language, year, author, and periodical title. They can also view an indication of the libraries from which it can access the source, citation export options, and how to cite the source (for many citation styles). The reviews and critiques of Google Scholar have been mixed, at best. Its content, its search engine, its interface, and its citation count have all been criticized. Patrons of libraries who have subscriptions to the digital archives of publishers are the greatest beneficiaries of Google Scholar, as with a single search they are led to the full digital text versions of the articles [4–6]. Google Scholar is very different from library database interfaces and their search options, yet it introduces library users to scholarly articles through a familiar and friendly interface.
