Scirus is a popular search engine among research community. Scirus searches for scientific information with its comprehensive trusted network of article bases like Science Direct, PubMed and other journal databases. The results are highly relevant and you can choose the keywords used by authors to search for relevant scientific domain. You get the results in three categories, journal results, preferred web results and web results. If you try Scirus once, you will stick to it. It saved me lot of my research time.

Scirus is the most comprehensive scientific research tool on the web. With over 450 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.