Black hat SEO involves techniques such as paying to post links to a website on link farms, stuffing the metadata with nonrelated keywords, and using text that is invisible to readers to attract search engines. These and many other black hat SEO tactics may boost traffic, but search engines frown on the use of such measures. Search engines may punish sites that employ these methods by reducing their page rank or delisting them from search results.
The strength of your link profile isn’t solely determined by how many sites link back to you – it can also be affected by your internal linking structure. When creating and publishing content, be sure to keep an eye out for opportunities for internal links. This not only helps with SEO, but also results in a better, more useful experience for the user – the cornerstone of increasing traffic to your website.
Thanks for bringing up this point - I agree Eric - competitive positioning can help you determine value that you bring to the table that your competitors dont.  I'm all for it.  Neilsen does some reports that provide awareness, likelihood to recommend, sentiment and other insightsfor your site/brand and your competitors. You can also pull some of that type of insight out of social listening platforms like NetBase, SM2, Radian6, Dow Jones, Nielsen, and so many others.  I've even done some hacked compeitove sentiment comprisons before using Search: searching for [brand or feature] + "like", "love", hate", "wish" etc. 
I am a little confused on your first point. Sorry if it is a simple one to understand and I’m just missing it. What good would finding dead links on Wiki do for my personal website? I thought you would explain how to find dead links faster within my own site… but it seems that your tip is way more valuable than that. I just don’t quite understand what I do to positively affect MY site with this. Any help would be great 🙂 THANKS!
Who doesn’t love quizzes? They are enjoyable, shareable and hard to resist. Design a quiz for your website that somehow relates to your brand. If your company sells jeans, for instance, you could create a quiz called, “What are the best jeans for your body?” and in the results, show the brand’s recommended jeans. But remember—before showing results, be sure to capture the visitor’s e-mail address.
The first relates to internal link structure. I’ve made the mistake you say you’ve seen so often. I have a primary keyword and have used that keyword in the main navigation, linked to a page optimized for that keyword. But I’ve also got a bunch of contextual links in posts pointing to that page, usually with the keyword in the anchor text. I now understand that those internal links aren’t helping much, at least from an SEO perspective. Am I better to remove that keyword and direct link from the menu and simply link the page from multiple posts and pages within the site. Or will I get better results leaving it in the main menu and changing the contextual links in the posts to point to a related page with a different keyword?
By relying so much on factors such as keyword density which were exclusively within a webmaster's control, early search engines suffered from abuse and ranking manipulation. To provide better results to their users, search engines had to adapt to ensure their results pages showed the most relevant search results, rather than unrelated pages stuffed with numerous keywords by unscrupulous webmasters. This meant moving away from heavy reliance on term density to a more holistic process for scoring semantic signals.[13] Since the success and popularity of a search engine is determined by its ability to produce the most relevant results to any given search, poor quality or irrelevant search results could lead users to find other search sources. Search engines responded by developing more complex ranking algorithms, taking into account additional factors that were more difficult for webmasters to manipulate. In 2005, an annual conference, AIRWeb (Adversarial Information Retrieval on the Web), was created to bring together practitioners and researchers concerned with search engine optimization and related topics.[14]
People want to speak their minds and weigh in on subjects they feel passionately about, so building a community into your site is a great way to start a conversation and increase traffic to your website. Implement a robust commenting system through third-party solutions such as Facebook comments or Disqus, or create a dedicated forum where visitors can ask questions. Don’t forget to manage your community to ensure that minimum standards of decorum are met, however.
Search engines use complex mathematical algorithms to interpret which websites a user seeks. In this diagram, if each bubble represents a website, programs sometimes called spiders examine which sites link to which other sites, with arrows representing these links. Websites getting more inbound links, or stronger links, are presumed to be more important and what the user is searching for. In this example, since website B is the recipient of numerous inbound links, it ranks more highly in a web search. And the links "carry through", such that website C, even though it only has one inbound link, has an inbound link from a highly popular site (B) while site E does not. Note: Percentages are rounded.