This is a crucial area. If you do not have schema markup and rel="author", you are costing your business money. It is as simple as that. As an example, say I want to make spaghetti (pasta) for dinner I search for “Spaghetti Recipe” and instantly I see some great markup in play, but one competitor has no markup and no rel="author" they are losing business in my eyes. Wouldn't you agree?.
I feel we can also focus a lot on the kind of keywords we target. I had a client who was in a very competitive market place, we optimized their site for some really targeted, long tailed keywords which didn’t have very high search volume, so the traffic didn’t really go up drastically but the amount of conversions & the kind of CTRs the site received was incredible.
Guest blogging and infographic distribution are great ways to attract high quality links. Do not focus on the total number of links. Spend your time focused on quality links, from websites that are highly relevant to your business. If any SEO company tells you that they can rank your website virtually overnight you need to turn around and run away…fast. Google will continue to refresh their Panda, Penguin, and Hummingbird updates, so make sure that you are focusing on quality rather than quantity.