Social Media News Ticker: Instagram Signs Ad Deal, Twitter Bans Porn on Vine

Check out this week’s summary of all the latest social media news, including changes and new features for Facebook, Twitter, Pinterest and Reddit:

Facebook

Facebook Updates Paper App
Facebook updates Paper app for iPhone

Twitter

Pinterest

reddit to donate one-tenth of ad revenue to charity

Reddit

Any social media updates that we missed?  Let us know in the comments below.