Scirus is a specialty web database that focuses on science-specific material from publishing powerhouse Elsevier. Scirus combines open web material with content from many specialty databases (both free and fee). Today, Scirus announced a new partnership with the Networked Digital Library of Theses and Dissertations (NDLTD) to include its collection of theses and dissertations from NDLTD member institutes in the Scirus database.
Scirus has indexed over 200,000 theses and dissertations, in more than twelve languages, including English, Portugese, French, German, Spanish and Taiwanese, among others. The theses and dissertations are from institutes around the world, including their largest content contributors Library and Archives Canada, Hong Kong University, Brazilian Institute of Scientific and Technical Information (IBICT), MIT, University of Uppsala, National Sun Yat-Sen University of Taiwan (NSYSU) and Virginia Tech.
Scirus has been mentioned several times on the SEW Blog and it's a database that I plan to "pimp" in the near future. Scirus received an honorable mention in the Specialty Database category during this year's Search Engine Watch Search Awards.
Fast Fact: One of the largest, if the not the largest, database of dissertations comes from UMI/ProQuest and contains more than 2 million titles dating back to 1861. Newer disserations (past two years) can be searched and previewed online for free. It's also possible to order the full text and have it delivered via mail or online.