Usually people who want to know something ask a question in Google or Yahoo and get a results page. This will be highlighted site whose profile, niche, is 'questions and answers'. Just as most questions have answers.
I noticed the growing trend of this kind of site is quite large, online at least monthly standing such a new site. However, as long as most questions will get answers, I wonder: 'why I call such a site?'
answer-blog.blogspot.com - a site with questions and answers.