  It is not clear whether we can accurately label current search engines as “Web 2.0 search engines,” even though they operate in a Web 2.0 environment. For example, many of the participatory tools and functions that apply to applications such as social networks, blogs, and wikis do not necessarily apply to contemporary search engines. So, it may be more appropriate to use Hinman’s phrase “second-generation search engines.” However, O’Reilly (2005) suggests that Google’s practice of incorporating user-generated content to provide a “better” Web search environment for users is compatible with interactive dimensions and objectives of Web 2.0. But despite O’Reilly’s interpretation of Google’s practices,  one might still question whether the phrase “Web 2.0 search engines” is warranted; so, we will instead refer to contemporary (or second-generation) search engines as “Web 2.0-era search engines.”