Google tests a new feature that shows the estimated number of words next to certain search results. The word count is usually displayed for articles, but only for a small numeral of results. You'll almost certainly think twice before clicking on a hunt result that has 50,000 words, unless you're looking for an in-depth account.
Maybe Google will also add an higher search feature that lets you limit the search results to short articles or long documents. A summarization characteristic would also be helpful.