The image below is from Gary Vaynerchuk, one of my virtual mentors. I strongly believe that my success has come by studying free information online. I read a lot and I enjoy watching and listening to other gurus work their craft. While I can obtain most of my tech content from CIO.com, WIRED, Computer World, ect, I get / steal / adapt my marketing ideas from Gary Vaynerchuk. You can always upgrade your marketing skills by testing out methods. You don't have to follow completely what someone else does, but you learn nothing if you don't experiment.