In 1998, two graduate students at Stanford University, Larry Page and Sergey Brin, developed "Backrub", a search engine that relied on a mathematical algorithm to rate the prominence of web pages. The number calculated by the algorithm, PageRank, is a function of the quantity and strength of inbound links.[22] PageRank estimates the likelihood that a given page will be reached by a web user who randomly surfs the web, and follows links from one page to another. In effect, this means that some links are stronger than others, as a higher PageRank page is more likely to be reached by the random web surfer.

You mentioned: "many times clients have already done this work.  Ask them for copies of their market research reports when you start a project.  It will save you a ton of time and effort!"  We do this with most of our clients, like you said we have found that around 75% of the have some kind of Market research done, that saves you a lot of time and helps setting up the right SEO Strategy. 
SEO is short for "search engine optimization." To have your site optimized for the search engines means to attempt to have top placement in the results pages whenever a specific keyword is typed into the query box. There are many search engine optimization services to choose from, so here are some things to keep in mind when seeking SEO services or developing an SEO strategy of your own.
Influencers: Government Contracting Officers, Other GovCon (Government Contracting) consultants, Sellers of professional services for small businesses (certain CPAs, bonding companies, financial institutions, contract attorneys), large contracting firms (who need to hire small business subcontractors), Union/trade organizations, Construction and Engineering trade publications
Btw, I was always under the impression that digg and delicious were dying but I’m really mistaken. Your(and Jason’s) thinking is foolproof though. If these guys are already curating content, there’s no reason they wouldn’t want to do more of just that! Seo has become a lot of chasing and pestering…it’s good of you to remind us that there are people out there just waiting to share stuff, too.:)
Laura,Great post.  This touches something I wish more SEOs practiced: conversion optimization. I think most SEOs think of what they do as a service for, instead of a partnership with clients.  The end result should never be raw traffic, but value obtained through targeted, CONVERTING traffic.You make excellent points about market research, product input, content creation, and other functions many SEOs and SEMs neglect.More and more SEO providers focus only on assembly line basics and worn out techniques instead of challenging themsleves to learn product marketing, usability, and conversion optimization.Your advice on market research is extremely valuable.Great start to a promising series.  I look forward to more!
Also make sure that your blog posts are consistent with one another and that each post has the same-sized images, headings and font. Always ensure that your blog post titles don’t lead your visitors astray.  This may seem obvious, but it happens more often than you’d think. For example, if your blog post is titled “The Top 10 Places to Hike in Southern California” but the post itself talks about hiking spots all throughout the entire state of California, you’re probably going to lose visitors. After all, it’s not what they had signed on for!
Provide full functionality on all devices. Mobile users expect the same functionality - such as commenting and check-out - and content on mobile as well as on all other devices that your website supports. In addition to textual content, make sure that all important images and videos are embedded and accessible on mobile devices. For search engines, provide all structured data and other metadata - such as titles, descriptions, link-elements, and other meta-tags - on all versions of the pages.
Guest post on other blogs, and invite other bloggers to guest post on your site. Guest posts are a great way to drive traffic between related blogs, and allow you to gain readers that might not normally make it to your site. Be sure to allow any guest posters to link back to their own site, and share any guest posts the same as you would your own posts.
We now have a dedicated SEO strategist who, among other things, develops 90 day plans for our websites. 90 days isn't longterm planning, but at least we have a strategic objective for the quarter. He also works closely with our UX team to identify the target audience - the crew that does the persona research and focus groups prior to the wireframe stage.
Black hat SEO attempts to improve rankings in ways that are disapproved of by the search engines, or involve deception. One black hat technique uses hidden text, either as text colored similar to the background, in an invisible div, or positioned off screen. Another method gives a different page depending on whether the page is being requested by a human visitor or a search engine, a technique known as cloaking. Another category sometimes used is grey hat SEO. This is in between black hat and white hat approaches, where the methods employed avoid the site being penalized but do not act in producing the best content for users. Grey hat SEO is entirely focused on improving search engine rankings.