Google has changed the SERP results on its pages to include bold text snippets of information on some results.
As you can see the answer is now in the search engine page result (SERO)
Search for: How large was the titanic
Titanic question: How large was the titanic? The Titanic was 882 feet 8 inches long, 92 feet 6 inches in breadth. Her designed waterline was 34 feet, …
wiki.answers.com/Q/How_large_was_the_titanic – Cached – Similar –
This could have an adverse effect on click through rates for a website unless the algorithms somehow count page views of the SERP as if it were clicked and the page actually visited. If people can get the information they are looking for in a snippet from the SERP then it may have an effect on what else they may find within that site if they actually had to open the page.