After Facebook acquired the photo-sharing application and service Instagram for $1 billion dollars in April, it was recently brought to light that Facebook decided that it would revamp the terms of services. The new terms of services would give the newly acquired Instagram the rights and the ability to sell users photos meaning that whatever you upload could be used. Instagram members became outraged over it and began porting their photos over to competitors such as Yahoo's Flickr.
Since receiving backlash from Instagram users, Facebook has returned back to the drawing board which ended with Instagram's co-founder Kevin Systrom posting to his blog confirming that the company has to rethink things and return on how they plan to use their advertising business.
This isn't the only thing that has Instagram users upset. Earlier this month, Instagram shut off it's integration with Twitter and disabled the ability to view photos from Twitter streams. Twitter came back and released its own set of photo filters for users to enjoy.
It is believed that the Facebook/Instagram vs Twitter business mainly has to do with Facebook snagging up Instagram, despite Twitter corps saying that they had an oral agreement with Instagram for $500 million.