Sökmotorer - ett urval

• Google
• Google Scholar - söker i akademiskt och vetenskapligt material. Läs om Google Scholar.
• OAIster - "OAIster is a union catalog of millions of records representing open archive resources that was built by harvesting from open archive collections worldwide..."
• Scirus - "Scirus is the most comprehensive scientific research tool on the web. With over 370 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."