Doing search on google is an art. There are a large number of facilities on google which can help you to have better search results. I have already written an article on how to search on google. Here I am giving a list of tools that will help you to do sharp search, right search on google 
- Google – The Search Engine.
- Google Advanced Search – search based on specific parameters
- Google Suggest – As you type into the search box, it guesses what you’re typing and offers suggestions.
- Google Trends – It helps you to see and compare what the whole world is searching for.
- Google Personalized Search – Enable you to use your search experience.
- Google Search History – Keeps a record of all searches while a user is logged into his Google Account
- Google Blog search – Used to search Blogs
- Blogger Blog Search – Search for blogs all over the web
- Google Directory – Search the web organized by topic into categories (dmoz directory)
- Google Video – Search Videos
- Google Image Search – Search Images
- Google Music Search – Search Music
- Google Book Search – Search the full text of books
- Google Catalogs – helps you browse and search merchant-provided catalogs
- Froogle – A Shopping search engine
- Google News – Search and browse 4,500 news sources
- Google News archive search – provides an easy way to search and explore historical archives.
- Google Scholar – search for the most relevant research across the world of scholarly research.
- Google Patent Search – find the full text of the U.S. patent corpus and find patents that interest you.
- Google Maps – View maps, get driving directions, and search for local businesses and services.
- Google Public Service Search – offers educational institutions and non-profit organizations free SiteSearch,
- Google’s University Search – search any specific school or college websites
- Google Ride Finder – view taxi or shuttle locations in several cities.
- Google Base – submit all types of online and offline content that is hosted and made searchable online.
- Google’s Special Searches – Search any special topic.
- Google Apple/Macintosh Search – Search for Apple/Macintosh-related sites
- Google Microsoft Search – Search Microsoft-related sites
- Google Linux Search – Search all Linux related pages
- Google U.S. Government Search – Search all .gov and .mil sites
- BSD Unix – Search web stuffs related to BSD operating system
