I love AnswerTips on my blog.
AnswerTips™: Definition and Much More from Answers.com
This is a cool widget that, when placed on your blog, allows your reader to doubleclick any word on your page - any word AT ALL - and get a popup that gives them a definition of the word, or cultural references. For example, doubleclicking the word "disorder" gives me a tiny popup with the definition of the word "disorder" on it.
Clicking the word "Brother", contained in the phrase "Big Brother", however, gives me a detailed article about George Orwell's
1984.
See this in action at my blog:
One Girl’s Blog
