Amazing tips on this thread. Damn. Stefanie's knowledge in the field is really impressive.
Another tip for someone that wants more "credibility" in front of clients: publish a guest post (or a few of them) on sites like SEOmoz, SEJ, SEL, etc... it's easier than most people think and it impresses the shit out of clients. They think you're some kind of god of SEO or something when they see that you publish content on those blogs. (Don't tell them that it's easy and even Sumit can do it lol)
Another tip for someone that wants more "credibility" in front of clients: publish a guest post (or a few of them) on sites like SEOmoz, SEJ, SEL, etc... it's easier than most people think and it impresses the shit out of clients. They think you're some kind of god of SEO or something when they see that you publish content on those blogs. (Don't tell them that it's easy and even Sumit can do it lol)