At the same time, Facebook has been amping up its advertising efforts, with new ad formats and, about a year ago, the insertion of its Sponsored Stories ads directly into the newsfeed.

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These new types of ads include both Sponsored Stories and Social Ads.

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The trend continued with the release of Sponsored Stories and targeted ads.

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Sponsored stories, personalized ads, a new Gifts service, and Facebook logins ubiquitously present across the web combine to change the way it feels, and not in a good way.

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However, some Facebook ads such as Sponsored Stories are in fact actual posts that a brand simply pays to distribute more widely, while others are brand ads with a notice that a friend likes the brand.

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In particular, notice the floating advertising section (viewable in the lower right quadrant of the first image above), which contains sponsored display advertisements, sponsored stories, and targeted display ads.

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Look in your account and privacy settings, and you see a lot of information on social ads and Sponsored Stories, including the possibility that you can appear in them.

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The first mobile ads in March were "sponsored stories, " which would link back to a brand's mobile page.

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As measured by click-through rates, Sponsored Stories in News Feed perform multiple times better on both desktop and mobile than ads in the right-hand column.

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