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Searchology 2009 was an event hosted by Google announcing several novel changes in the Google search options. In previous years Google has used this platform to showcase two significant improvements in its search: Universal Search and Personalized Search. Searchology 2009 focused on the users' intent.
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Wonder Wheel provides the user with a flash based interface having the searched query in the middle and the related queries at its branches. The text based results are still available but shifted rightwards. As the user clicks on the related query, the Wonder Wheel expands and the results at the right hand side of the page changes. The main aim of the Wonder Wheel is to guide the user to reach to the relevant resource in an intuitive manner.
When a search is made via Google Squared, the results are presented in the form of rows and columns. Further, these results can be exported to an online spreadsheet program whereby it can be stored into a database.
Although it was presented to the group of media and people from search industry on May 12, 2009, yet it was not made public as Google’s Associate Product Manager Alex Komoroske admitted that owing to the search flaws in Google Squared, later it was launched in Google Labs on June 3, 2009.
Rich Snippet displays additional data from other pages about the resources being displayed in the search result. In order to work, webmasters must incorporate open standards such as microdata, microformats or RDFa, and JSON-LD in their web pages. Google does not guarantee that the use of these open standards will result in rich snippets.
On May 17, 2016, Google announce a new search result format builder called "Rich Card". Rich cards are similar like Rich snippet, use schema.org Structured markup to showcase the content in a new visual format. Rich card for four content categories: Recipes, Events, Product and Reviews.
When a user asks a question in Google Search, we might show a search result in a special featured snippet block at the top of the search results page. This featured snippet block includes a summary of the answer, extracted from a webpage, plus a link to the page, the page title and URL. 
Notes and references
- Google Searchology Webcast
- Google Official Blog
- Search Engine Land
- Microformats or RDFa
- Los Angeles Times
1. Udi Manber, VP, Engineering (Core Search)
2. Patrick Riley, Software Engineer
3. Scott Huffman, Engineering Director
4. Marissa Mayer, VP, Search Products and User Experience
5. Nandu Jankiram, Associate Product Manager
6. Alex Komoroske, Associate Product Manager
7. Kavi Goel, Product Manager
8. John Taylor, Software Engineer