The best content marketers aren't afraid to share. Share content. Share links. Share ideas. Share data.
The thing is, sometimes marketers get a little protective of their stuff because there are less-than-scrupulous people out there who take content and then try to pass it off as their own. All that hard work, and none of the credit. Not cool, less-than-scrupulous people. Not cool.
But sometimes it isn't a matter of people being jerks -- they might just not know how the internet "works." You're supposed to share content, but you're also supposed to give credit where credit is due.