Their objectives have not changed since the height of the slave trade: educate, document and mobilize.
By that I mean abolitionists work to spread awareness about the horrors of owning another human being. They record instances of this appalling practice. And they organize others to do something to stop it.
Sadly, slavery still exists today. But the tools to fight it have come a long way. The non-profit group, Not For Sale, utilizes technology to show people that human trafficking exists in their backyard. This online map lets you see instances of slavery near you... wherever you are.