RedZee is one of many new visual search engines that is a lot of fun to use. All a user has to do is type in their query and then scroll through the thumbnails that are displayed.

Quintura Kids is the first visual and intuitive search engine for children with content filter and safe browsing.
 

Search the web for music, remixes, podcasts and more.

Zomobo integrates content from multiple web services to provide a comprehensive and up-to-date overview of every topic. Its articles feature videos, images, ... (the real-time encyclopedia)

Mashpedia is a Dynamic Web Content Aggregator that pulls content from different online services in real-time, offering a complete and fresh outlook about (almost) any topic.

Every time you query Mashpedia, it loads information and digital contents from many online sources and then organize them in an easy-to-use interface. At Mashpedia you'll find fresh data and digital media from Newspapers, Magazines, Blogs, Books, Wikipedia, Youtube, Twitter, Facebook, Flickr, Social Answers and more online resources.

 Scirus is the most comprehensive scientific research tool on the web that provides the most accurate results for science specific queries and is a great resource for scientists and scholars. . With over 410 million scientific items indexed at last count, it allows researchers to search for not only journal content but also scientists' homepages, courseware, pre-print server material, patents and institutional repository and website information.  Scrius only includes the trusted sites in their index which guarantees the accuracy of results to the searcher.

Questions can be asked in sentence form, and the number of results is reasonable but not overwhelming for students. It has advertisements.

SweetSearch4Me is our search engine for emerging learners.   SweetSearch2Day is where students Learn Something New Every Day.   SweetSearch for School Librarians for content that helps students use the Web effectively.   Sweet Sites for teachers and students, organized by subject and academic level.   SweetSearch Biographies for profiles of 1,000+ significant people.  SweetSearch Social Studies for our best social studies content

Search the NCDC Storm Event database to find various types of storms recorded in your county or use other selection criteria as desired.

How Stuff Works explains hundreds of subjects, from car engines to lock-picking to ESP, using clear language and tons of illustrations.

FindSounds is a free search engine where you search sound effects all across the web. You can search audio files by entering a sound effect name like elephant, bass drum etc and can filter results according to File format, file size, number of channels , resolution etc.

Fly Express is a search engine for Biologists, where researchers can search from 100,000 digital images of more than 4,000 genes. Using FlyExpress researchers can view spatial patterns of individual genes at various stages of development.

Retrievr is a unique search engine which search flickr images on the basis of a rough sketch drawn by searcher.

Eduhound is a highly specialized educational directory with FREE categorized resources, lesson plans, clipart, and site sets for educators, teachers

McAfee Threat Libary is a search engine of online threats and vulnerabilities. It contains complete information about the viruses and malwares and link to the removal tools. Millions of threats exist today. The McAfee Avert Labs Threat Library has detailed information on viruses, Trojans, hoaxes, vulnerabilities and Potentially Unwanted Programs, where they come from, how they infect your system, and how to mitigate or remediate them.