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To effectively detect cyberbullying in OSNs, we need to understand if and how cyberbullying is affected by OSNs with different features. We chose to study Instagram and in this work, because both networks are very popular among teenagers and have increasingly been used for cyberbullying.

More importantly, we have noticed that some users mentioned their Instagram IDs in their profiles, thus allowing for direct comparison of user behaviors across these two social networks.

We observed among common users that most profile owners are more negative on than Instagram.  We also find that most friends are slightly more negative on than Instagram.