Many of us have seen our work show up, unacknowledged, in unexpected places and contexts. Some websites are relentless stealers of content; others shamelessly use the work of others to attract eyeballs or turn a profit. These are the kleptoparasites of the science communication ecosystem. But amongst these offenders are some shining examples of responsible content-sharing and aggregation -- outlets whose borrowing benefits both the creators and the purveyors of the work. That's the kind of symbiotic relationship we should be aiming for. Here, we will draw upon session participants to develop strategies for combatting online parasitism and promoting healthy content-sharing. How can we fight back against the kleptoparasites? I'm really hoping this session will be about more than just finger-pointing and griping, so bring your best and most constructive anti-parasite ideas to the room.