BBC
Bbc: Skillswise: Dictionaries and Indexes
This Skillswise site focuses on using dictionaries and indexes. Included are a video about why using these tools is important, fact sheets and worksheets about using them, quizzes on the information presented, and a dictionary game. The...
Merriam-Webster
Merriam Webster: Visual Dictionary Online
Picture dictionary with 6,000 pictures that illustrate American English words organized around different themes, such as astronomy, clothing, transporation, and sports. With access to a vocabulary-esque game of the week. [Has wraparound...