Labeling<ul><li>Use a clear label - Sponsored Marker (Required)</li><li>"Starburst" ad mark must be displayed together with “Sponsored” or “Ad” to distinguish ads that link to a traditional landing page environment.</li><li>Pixel requirement: 20x20 or 40x40</li><li>Use "Install" with app advertisers and "Learn More" with non-app advertisers.</li><li>Labels should be readable at a glance without straining. Contrast between the background color of the implementation and the text needs to be strong enough so the label is readable. Best practice is to make the label the same size as the ad text.</li><li>Place the label so users know at the beginning of their interaction that this is an ad. For example, top right - considering, in general, users read from top to bottom; left to right.</li></ul>Graphical Distinction<ul><li>Use Graphical elements, like borders, lines, shading, etc to help users see where the ad starts/ends and content begins/ceases.</li><li>A clear visual element that signals to users that this part of the experience is different is the goal. For example, a different colored background or a different colored border are ways to distinguish ads from organic content.</li></ul>Symbol<ul><li>Ad implementation must include a Radiant dollar or Adchoices symbol, link to <a href="http://info.yahoo.com/privacy/us/yahoo/relevantads.html">http://info.yahoo.com/privacy/us/yahoo/relevantads.html</a> an informational page that explains who served the ad, whether the ad was targeted, and gives users a link to opt-out of behavioral targeting.</li></ul>User Interactions and Experience<ul><li>Native ads should behave similar to other content without additional focus. For example, when users scroll through the content feed, promoted content should get the same duration of focus as other organic content. Or, if users click to play organic video content, promoted video should be clicked to play as well.</li></ul>Refer to the <a href="https://developer.yahoo.com/flurry/docs/publisher/gettingstarted/nativeadguidelines/">Yahoo Developer Network </a>documentation for further implementation details.

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