The National Technical Information Service serves our nation as the largest central resource for government-funded scientific, technical, engineering, and business related information available today. For 60 years NTIS has assured businesses, universities, and the public timely access to well over 3 million publications covering over 350 subject areas. Our mission supports the nation's economic growth by providing access to information that stimulates innovation and discovery.

Products:

• Approximately 3 million government information products
• More than 600,000 searchable on this web site

NTIS is the federal government's central source for the sale of scientific, technical, engineering, and related business information by or for the U.S. government and complementary materials from international sources. Three-million products are available in a variety of formats including online, electronic, multimedia, CD-ROM , paper, and microfiche.

You can access information on more than 600,000 of these products from this web site. Thousands of new products are added each week. Additionally, many records now include free links to the full-text publication on an agency's web site, or can be downloaded directly from the NTIS archival copy for a nominal charge.

• Use our featured search links to save time by searching within specific collections.
  　
• Search all 600,000 web site records by using the simple search or advanced search pages.
  　
• Try our Government Research Center Day Pass service, if you need comprehensive subject searching and full descriptive summaries for all of your search results.

• Have the Library of Congress' Federal Research Division search for you (fee-based). Click here for more information.

http://www.ntis.gov/about/