Bartlett's Familiar Quotations:

www.bartleby.com/100
This 10th edition contains more than 11,000 quotations from classic literature.

Britannica.com:

www.britannica.com
The complete text of the updated Encyclopedia Britannica and related Web resources.

InfoPlease Almanacs:

www.infoplease.com
Access to 10 content-area almanacs, with an atlas, dictionary and encyclopedia.

MapQuest:

www.mapquest.com
Includes a comprehensive world atlas of printable maps for countries throughout the world.

Merriam-Webster Collegiate Dictionary:

www.m-w.com/dictionary.htm
Easy access to the popular dictionary with the option to add a "dictionary button" to browsers.

Merriam-Webster Collegiate Thesaurus:

www.m-w.com/thesaurus.htm
Access to the well-known thesaurus with related language resources.

Roget's Thesaurus:

www.thesaurus.com
Offers search and browse options, and access to the American Heritage Dictionary.

Simpson's Contemporary Quotations:

www.bartleby.com/63
More than 10,000 quotations from 4,000 sources, from 1950 to 1988.

Strunk's Elements of Style:

www.bartleby.com/141
The classic reference book on writing, with rules of usage and principles of composition.

YourDictionary.com:

www.yourdictionary.com
Access to multiple language dictionaries, specialty dictionaries including education, and language tools.