This is an infographic from Go-Globe.com. It contains interesting results about Internet search, taken from several sources, including the Nelson Report for 2010.
The infographic describes three essential parts of SEO. Reported market share of the largest search engines - Google, Yahoo + Bing and Ask. It gives a clear picture of the effects of SEO on the success of companies, which are present on the Internet.
For me the most interesting data I was about ways in which people search information about products and services when deciding to shopping. The data show that 80% of them do research for a product or service through the Internet before to take advantage from local business.
At the end, it shows a great picture that better describes the value of search engine optimisation. Strikingly, 42% of people who perform a search query, click on the first result.