Pinterest has launched Pinterest Ad Labs, an innovation program enabling brands to test prototypes of new creative and ad tools.

After being spotted in the wild, Instagram confirmed it is testing unskippable ads. Users who are part of the test will see an Ad Break, which features a countdown timer and requires users to view an ad before being able to continue browsing content.

YouTube will be rolling out its Self-Certification Timestamp feature to more creators. This feature allows creators to self-rate their videos against YouTube’s advertiser-friendly content guidelines when uploaded via desktop.

Flipboard has launched Promoted Video, a new video ad format optimized for mobile.

Twitter is now allowing advertisers to use the Tweet Replies ad placement for all app install campaigns, following months of testing

Pinterest recently announced the rollout of a new tool called Pinterest Trends. Currently, in beta, the new tool provides a view of the top US search terms over the last past 12 months. In addition, it announced Pinterest 100, its annual report that reveals the top emerging trends to capitalize on in the upcoming year.

Pandora will start testing interactive voice ads next year as a result of its new partnership with San-Francisco-based, voice-enabled audio advertising platform, Instreamatic.

Instagram has launched a new ad type in Interactive Stories Ads. Starting with Polling Stickers, the ad type gives brands the ability to use interactive elements in Stories Ads.

Pinterest rolls out a new ad format called Promoted Carousel that lets businesses include up to 5 images in their ad spots.

Instagram is currently testing a new ad type in Promote For Stories, which lets business account users boost their Stories easily.

Snapchat launches Snapchat Storytellers, a pilot program that connects brands with its influencers.