Our fourth instalment of PR Bants covers these topics:

* Is Airbnb's anti-discrimination policy the panacea for #AirbnbWhileBlack

* Should we mourn the death of Vine?

* The British Heart Foundation's use of twitter to breathe life into a health awareness campaign

* Why the United Nations' appointment of Wonder Woman is a major PR fail

* The continuing saga of #Marmitegate, and using Brexit as a 'get out of jail' card

Happy listening, and let us know what you think by tweeting @PRbants using the hashtag #PRbants