"Slurp up a Web page, spit back Purple numbers"
If you are not familiar with Purple numbers you may want to read Eugene Eric Kim's “An Introduction to Purple”. See also Eric Armstrong's comments on granular addressability
Want one-click Purple numbers? Right-click on this link, PurpleSlurple Bookmarklet, and bookmark it, or drag and drop this bookmark onto your browser's personal toolbar. Now when you are viewing a page on which you would like Purple numbers just click the bookmarklet. (Javascript must be enabled).
Enter the URL of the page to which you would like to apply Purple numbers.
PurpleSlurple ™ was created by Matthew A. Schneider