Google Operating System noticed that Google added an additional search option feature, named “prices from the page.” When you select this option, Google will try to pull out prices from the web page results, for the query you entered.
Here is an example, please note that I cropped the screen shot to highlight the prices snippets area:
Related Topics: Google: User Interface | Google: Web Search









Hmm, it would be funny if it were not true. Not long ago, Google was full of price-comparison spam. Then they cleaned it, and now they are birnging it back – themselves :(