There are a number of elements, but let's talk about the concept that a good content marketing plan is using multiple channels for communication like social media channels, content on a brand's own site, guest posting on other authoritative sites, giving and getting interviews, and so on…If you're just starting out, it can be daunting to think you have to do all these things, but you don't have to start with them all. You can start with just one or two areas – maybe it's your own site's content and one social media network. Just keep in mind that what you're doing now is all part of the bigger picture as you grow; putting quality stuff out there and building a reputation. - Eric Enge, SearchEngineWatch.com