When would this be useful? If your site has a blog with public commenting turned on, links within those comments could pass your reputation to pages that you may not be comfortable vouching for. Blog comment areas on pages are highly susceptible to comment spam. Nofollowing these user-added links ensures that you're not giving your page's hard-earned reputation to a spammy site.
In the early days of the web, site owners could rank high in search engines by adding lots of search terms to web pages, whether they were relevant to the website or not. Search engines caught on and, over time, have refined their algorithms to favor high-quality content and sites. This means that SEO is now more complex than just adding the right words to your copy.
We often see posts on how to get blog topic ideas or ideas on creating visuals but nobody ever talked about new link building ideas. The ways you showed here some are absolutely unheard to me. You know what I think you should write a post on how to get your own link building ideas…where to start…how to proceed…how do I know it’s full proof…it surely comes with lots of experiments…but the point is starting…….I know sounds weird but I know you will come up with something 🙂
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.
Facebook is keen to promote streaming video – the success of Twitch.tv has them drooling. This means that Streaming videos are given massive “reach” – more people see them. They’ll show your video to more of your page subscribers, more group members, etc. If the video is good, you’ll get lots of shares and likes, and this can build your audience rapidly.
Website owners recognized the value of a high ranking and visibility in search engine results, creating an opportunity for both white hat and black hat SEO practitioners. According to industry analyst Danny Sullivan, the phrase "search engine optimization" probably came into use in 1997. Sullivan credits Bruce Clay as one of the first people to popularize the term. On May 2, 2007, Jason Gambert attempted to trademark the term SEO by convincing the Trademark Office in Arizona that SEO is a "process" involving manipulation of keywords and not a "marketing service."