Books of Educational and Informational Comics from Larry Paros

An Etymological Dictionary of Classical Mythology:

The study of word origins, focusing specifically on those modern English words whose origins reach far back into Ancient Greek and Roman mythology.

A Way With Words:

Martha Barnette and Grant Barrett from their radio show of the same name.

Behind the Name:

The etymology and history of first names.

The Concise Oxford Dictionary of English Etymology:

Based on The Oxford Dictionary of English Etymology, this abbreviated version contains a wealth of information about the English language and its history. Subscription required.

English Language and Usage Stack Exchange:

A question and answer site for linguists, etymologists, and serious English language enthusiasts. It's 100% free, no registration required.

Etymologically Speaking:

Curious word origins, English, French, and German words from which we get some common English words.

Focusing on Words:

Words as the building blocks of communication; vocabulary development and etymology.

Martha Barnette's Learn a New Word:

A few hundred of this wordsmith's favorite words and their origins.

Online Etymological Dictionary:

Self described as "a map of the wheel-ruts of modern English"... explanations of what our words meant and how they sounded 600 or 2,000 years ago.

Pandora Word Box:

Links Medicine and Biology with Humanities, Arts and Sciences. The goal is to stress "Ideas in Words", to be entertaining and replace memorization by a better grasp of meanings.

The Phrase Finder:

1,700 English phrases, sayings, idioms, and expressions, with their meanings and origins explained.

Take Our Word for it:

An old standby on the internet featuring word origins, published irregularly as a webzine.

A.Word.A.Day (and more):

Exactly what it says.

The Word Detective:

An online version of a newspaper column of the same name, answering readers' questions about words and language. Written by Evan Morris, a master word sleuth.

Ultimate Vocabulary Resource Guide:

Vocabulary Resources, General Vocabulary Tools, Resources for Educators and Parents.

Wordexplorations.com:

Dedicated to studying Latin and Greek etymological connections with English, with other very interesting linguistic resources. Very useful and user-friendly (paid members only).

A World of Words:

From the desk of Professor John M. Lawler, linguist, and general practitioner of linguistics, who has a rather expansive definition of the practice.

Wordorigins.org:

(Formerly Dave Wilton's Etymology) - devoted to the origins of words and phrases; full of folklore and historical lessons.

Word Quests:

Links to English words derived from Latin and Greek.

Ye Olde English Sayings:

Sayings and phrase that we have grown up with and taken for granted. Many based on folk etymology-- quaint but of dubious authenticity.