Twitter updates

1. Twitter Dumps Share Totals In Redesign Of Tweet & Follow Buttons: Twitter’s ubiquitous tweet and follow buttons are getting a new look, and dumping share counts, a feature of the tweet button since its inception. The redesign, coming in October, was announced without fanfare this week in a post on the Twitter developers forum and swaps the buttons’ 3D effect for a flat look that’s lately become a go-to UI choice for online platforms.

2. Twitter Rolls Out Video Cards For Mobile App Marketers: Joining the ranks of Twitter’s ad cards is the Video App Card, app install ads that enable app developers to promote their apps with video clips. The card format is rolling out of beta globally. Videos show users a preview of the app and autoplay in timelines. App marketers can use any of Twitter’s ad targeting capabilities including device, interest, keyword, location and tailored audiences.

3. Twitter confirms it’s experimenting with native polls in tweets: Twitter is looking at letting users add quick polls to their tweets. A company spokesperson confirmed the possibility in a statement to VentureBeat saying, “We’re experimenting with a new way to poll users on Twitter.”

4. Citi slashes its Twitter price target, and warns it’s ‘high risk’: Citi’s Mark May revisited his projections for the company, cut his outlook for revenues, slashed his price target on the stock, and now warns the stock is “High Risk.”

Read more: Twitter’s Slowing User Growth Is Impacting Its Ad Business: eMarketer

Facebook updates

5. Facebook Renames Its Controversial App: Facebook is rebranding its most prominent—and controversial—effort to connect the unconnected. Today the company said it will change the name of its app and mobile website, now available to mobile phone users in 18 countries, to Free Basics by Facebook.

6. Facebook Mentions now lets journalists monitor what’s being said about their stories: Facebook is expanding the capabilities of its Mentions app to now let journalists keep track of what people are saying about their articles — even if they’re not mentioned by name. To accomplish this, media professionals need to implement an author tag on their website that connects to their Facebook profile or page.

7. Facebook has collected your web browsing habits to target you with ads: Facebook said this week that it will soon begin using the data it collects on your use of the “like” and “share” buttons and other social widgets embedded in millions of websites and apps to better personalize the ads it shows you, starting next month.

8. Facebook Is Expanding Instant Articles & Washington Post Will Publish All Its Stories There: Today Facebook said it is giving access to 21 new publishers and will start displaying Instant Articles to more of its users.

Read more: Why Washington Post Will Post 1200 Articles A Day On Facebook Instant Articles

9. Facebook Ad Revenues Expected To Grow 42 Percent in 2015, Twitter Growth Estimates Lowered:Instagram is helping to drive Facebook’s continued strong growth in ad revenues. Facebook’s ad revenues are expected to reach $16.29 billion this year, an increase of 41.8 percent this year compared to 2014, putting its market share among social networks at 64.8 percent, up slightly from 64.4 percent the previous year.

10. Facebook Brings 360-Degree Video To The News Feed: Facebook is giving 360-degree video a spin in the News Feed. The social network announced today that it has started displaying 360-degree video, rolling out the immersive feature with a number of media partners, including Star Wars, Discovery, GoPro, LeBron James, NBC’s Saturday Night Live and VICE.

Pinterest and Instagram updates

11. Instagram Now Has 400 Million Monthly Users: Instagram revealed today that it has 400 million monthly users, which represents a growth of 100 million users since the beginning of this year.

12. Pinterest Opens API Platform To All Developers: Pinterest is throwing open its API sandbox to all developers. This summer, the social bookmarking network gave API access to selected developers, leading to integrations with Polyvore, IFTTT and, this month, Topshop. Today, the company announced that developers no longer need to be pre-approved to start working with the levers to integrate Pinterest with their sites and apps. Pinterest software engineer Zack Argyle explained in a blog post.

13. Pinterest Says Pinners Are Already Planning For The Holidays: Pinterest says people are already searching for and Pinning creative gift sets and stocking stuffers. It cited a study by market researcher CivicScience that found 47 percent of Pinterest users start their holiday shopping before Thanksgiving (compared to 39 percent of the population overall).