Aria Database - Close to 1000 arias - searchable by name, opera, language, composer, voice type, range, keyword, and whether there is a sound file (MIDI), translation, or text available.
Best's Ratings Online - Database of nearly 6,000 life/health, property/casualty, and international insurance companies' Best's Ratings. Information provided includes the latest Best's rating, financial size category, group membership, address, phone numbers, and Web link (if available).
Big Bands Database - database of big band and other popular music is searchable by band name, musician, song title, or other keyword. May also be browsed by region (American, Canadian, British, or European bands). Includes information on current bands as well as historical material.
Chemical Scorecard - Locate polluting companies in your neighborhood, find information about the type of chemicals being released, and learn the health risks associated with those pollutants at this Environmental Defense Fund sponsored site
Database of Award-Winning Children's Literature - Search this database to locate award winning juvenile books that fit your criteria. Many features can be specified including age, genre, award, ethnicity of protagonist, gender of protagonist, historical period, and more.
EDGAR Database - Major database of publicly available filings submitted to the U.S. Securities and Exchange Commission
Genamics JournalSeek - Genamics JournalSeek is the largest database of freely available journal information available on the internet. The database presently contains more than 8500 titles.
Internet Nonprofit Center - Data from IRS Master File Exempt Organization Records that contain the basic information (address, exempt status, etc) of more than 1 million tax exempt entities. Allows for title and zipcode searches.