Online version of McGraw-Hill Encyclopedia of Science and Technology. Articles, current news and research updates, biographies of leading scientists through history, and internet links in a wide range of fields. Limited free content. Site includes subscription information and registration for free trial access.
- Dr. Fred's Place
Official web site of children's science author Dr. Fred Bortz, including biographical information, list of Dr. Fred's books, "Ask Dr. Fred" science questions, and information about Dr. Fred's school visits