Social Media News Ticker: Twitter Ad Retargeting, Google ‘+Post Ads,’ Apple Buys Topsy

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

Facebook

Google+

  • Google makes its own social ads, with a twist – Google+ debuts ‘+Post’ ads; brand posts on the social network are turned into ads, which will run on sites (but not on Google+ itself) that use Google’s “massive” ad network (AllThingsD)

Twitter

Tumblr

and….Apple?!

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