Specialized Lists ofSearch EnginesSearchable DirectoriesArchivesand Portalsfor Professional Research
List of specialized search engines, searchable directories, and portals to maximize the efficiency of your search, you need to use specialized search engines that help you find the most relevant results first. This will reduce your research time and ensure that the sites on your list will assist you with your project.
This will reduce your research time and ensure that the sites on your list will assist you with your project. The following is a comprehensive list of search engines that includes the top different types of search engines:
Blogs Search Engines & Blogs Resources
Documents Search Engines and Documents Database Archives
Deep Web Search Engines, Deep Web Research Tools & Resources
Forums, Online Communities, and Groups Search Engines
FTP Files Search Engines
General Directories and Listings
Government Search Engines
Human Rights Search Engine & Searchable Documents
Legal Research, International Law, Law Archives and Legal Portals
Images Search Engines
People Search Engines, Email Search Engines, and Background Searches
News Agencies and News Sources
PDF Search Engines
Q & A Search Engines and Human Assisted Search Engines and Directories
Regional Search Engines
Social Media Search Engines and Social Media Information Resource
Scholar, Educational Resources, Sciences, Arts, Books, Journals and Other References
Video Search Engines
All links have been verified to be LIVE and functioning. Information resources are examined and rated for information relevance, subject and resource reliability, and data quality using the AOFIRS Resource Scoring Process. If you have any suggestions or discover any broken links, please email us at [email protected]
Information Resource, Search Engines Scoring Criteria
Ratings Score Reputation Scale
The reputation of the Resource
Type of Data and Volume of Free Information
Information Quality, Reliability and Relevance (newest and updated)
Number of Years in Business
Innovation and presentation (niche area, information presentation, ease of access, etc.)
1 = Poor | 2 = Better | 3 = Ok | 4 = Good | 5 = Very Good | 5+ = Best
