The issue being, this change makes it a bad idea to nofollow ANY internal link as any internal page is bound to have a menu of internal links on it, thus keeping the PR flowing, (as opposed to nofollow making it evaporate). So no matter how useless the page is to search engines, nofollowing it will hurt you. Many many webmasters either use robots.txt or noindex to block useless pages generated by ecommerce or forum applications, if this change applies to those methods as well it’d be really great to know, so we can stop sending a significant amount of weight into the abyss.
Optimization techniques are highly tuned to the dominant search engines in the target market. The search engines' market shares vary from market to market, as does competition. In 2003, Danny Sullivan stated that Google represented about 75% of all searches. In markets outside the United States, Google's share is often larger, and Google remains the dominant search engine worldwide as of 2007. As of 2006, Google had an 85–90% market share in Germany. While there were hundreds of SEO firms in the US at that time, there were only about five in Germany. As of June 2008, the market share of Google in the UK was close to 90% according to Hitwise. That market share is achieved in a number of countries.
So, for example, a short-tail keyphrase might be “Logo design”. Putting that into Google will get you an awful lot of hits. There’s a lot of competition for that phrase, and it’s not particularly useful for your business, either. There are no buying signals in the phrase – so many people will use this phrase to learn about logo design or to examine other aspects of logo design work.
Internet marketing, or online marketing, refers to advertising and marketing efforts that use the Web and email to drive direct sales via electronic commerce, in addition to sales leads from websites or emails. Internet marketing and online advertising efforts are typically used in conjunction with traditional types of advertising such as radio, television, newspapers and magazines.
Current search engine optimization focuses on techniques such as making sure that each web page has appropriate title tags and that the content is not "thin" or low-quality. High-quality content is original, authoritative, factual, grammatically correct, and engaging to users. Poorly edited articles with spelling and grammatical errors will be demoted by search engines.
Search engine optimization is a key part of online marketing because search is one of the primary ways that users navigate the web. In 2014, over 2.5 trillion searches were conducted worldwide across search engines such as Google, Bing, Yahoo, Baidu, and Yandex. For most websites, traffic that comes from search engines (known as "natural" or "organic" traffic) accounts for a large portion of their total traffic.