Dive Brief: 

• New data from publishers suggests that adding a share button for popular messaging app WhatsApp is worthwhile. 
• Sports site FTW, for example, added a share button for the app just one week ago and has already seen the percentage of shares coming from WhatsApp climb to 18% — higher than Twitter's 13%. 
• Additionally, music app Shazam claims WhatsApp is already behind 10% of its overall shares. 

Dive Insight: 

When something is as simple as adding a share button to a publication, it seems foolish not to test it out. There's little to be lost by adding the button, and from these numbers, WhatsApp could be a great way to gain social exposure.