Clients often ask me the difference and I give them a simple answer that normally puts an end to the conversation and their questions, much like the answer shane thomas gave, but less detailed.  Direct is people putting in your url in the top and organic is people searching for you.  Here is an example: If I want to buy a book i type in (direct traffic) but if i forgot where to buy a book online i search for "where to buy a book online" which directs me to (organic traffic).  When i explain it like this, a light bulb goes off and they understand.  Hope that helps.
To avoid undesirable content in the search indexes, webmasters can instruct spiders not to crawl certain files or directories through the standard robots.txt file in the root directory of the domain. Additionally, a page can be explicitly excluded from a search engine's database by using a meta tag specific to robots. When a search engine visits a site, the robots.txt located in the root directory is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish crawled. Pages typically prevented from being crawled include login specific pages such as shopping carts and user-specific content such as search results from internal searches. In March 2007, Google warned webmasters that they should prevent indexing of internal search results because those pages are considered search spam.[46]
With the development of this system, the price is growing under the high level of competition. Many advertisers prefer to expand their activities, including increasing search engines and adding more keywords. The more advertisers are willing to pay for clicks, the higher the ranking for advertising, which leads to higher traffic.[15] PPC comes at a cost. The higher position is likely to cost $5 for a given keyword, and $4.50 for a third location. A third advertiser earns 10% less than the top advertiser, while reducing traffic by 50%.[15] The investors must consider their return on investment and then determine whether the increase in traffic is worth the increase.
In 2014, Cisco stated that video made 64% of all internet traffic. In 2015, Searchmetrics was releasing a white paper quoting that 55% of all keyword searches in the U.S. return at least one video blended into Google’s web search results and that 8 out 10 of those videos belonged to YouTube. And in 2016, Cisco was also sharing that online videos will account for more than 80% of all consumer internet traffic by 2020.
It means that every piece of content that leads searchers to you is extending your brand equity. Not only that, you’re creating multiple touch points, so potential customers have every opportunity to discover your business. It takes on average of 6-8 touch points with a brand before someone becomes “sales-ready.” Too many? Well, for some industries, it’s way more. One woman’s car-buying journey took 900 digital touch points spanning three months.

Organic search (SEO): When you enter a keyword or phrase into a search engine like Google or Yahoo!, the organic results are displayed in the main body of the page.When your prospects search for information about your products and services, you want to rank highly in search engine results. By “optimizing” your site, you can improve your ranking for important search terms and phrases (“keywords”). You can also improve your rank by getting other important sites to link to yours.
Incidentally, according to a June 2013 study by Chitika, 9 out of 10 searchers don't go beyond Google's first page of organic search results, a claim often cited by the search engine optimization (SEO) industry to justify optimizing websites for organic search. Organic SEO describes the use of certain strategies or tools to elevate a website's content in the "free" search results.

You can also make sure that you’re not bleeding revenue due to friction somewhere along that path. How does that work? When you focus on organic search traffic, you’re compelled to take the battle to multiple marketing fronts. While SEO outperforms all other channels regarding ROI, it doesn’t always work in isolation. Email marketing, content marketing, social media, and other channels can all serve your SEO strategy. I’ll tell you something about marketers who are truly worth their stuff.

Keyword research and analysis involves three "steps": ensuring the site can be indexed in the search engines, finding the most relevant and popular keywords for the site and its products, and using those keywords on the site in a way that will generate and convert traffic. A follow-on effect of keyword analysis and research is the search perception impact.[13] Search perception impact describes the identified impact of a brand's search results on consumer perception, including title and meta tags, site indexing, and keyword focus. As online searching is often the first step for potential consumers/customers, the search perception impact shapes the brand impression for each individual.

Great analysis and tips, Rand. Your first tip was to focus on branded search... but when it comes to small-medium businesses, there's a limit on how much brand search-demand one can produce. Are you saying that google search will eventually become an engine made only for entities/businesses we already know of? Where does that leave the whole discovery process?

Always striving to learn, Don Dao is driven by new adventures and challenges. His love for media and social interactions has led him to pursue a career in marketing. Over the years, he has developed a broad skill set in all aspects of marketing, specifically in event organization, social media marketing, and content marketing. He enjoys working with passionate people to bring visions to life and inspire the world.

An ideal keyword has high monthly searches and a relatively low keyword difficulty. Once you find some keywords that make sense for your business, have a relatively high search volume and a relatively low keyword difficulty, it’s time to research the competition. However, you’ll first want to understand how local searches affect organic search engine optimization.

In December 2009, Google announced it would be using the web search history of all its users in order to populate search results.[32] On June 8, 2010 a new web indexing system called Google Caffeine was announced. Designed to allow users to find news results, forum posts and other content much sooner after publishing than before, Google caffeine was a change to the way Google updated its index in order to make things show up quicker on Google than before. According to Carrie Grimes, the software engineer who announced Caffeine for Google, "Caffeine provides 50 percent fresher results for web searches than our last index..."[33] Google Instant, real-time-search, was introduced in late 2010 in an attempt to make search results more timely and relevant. Historically site administrators have spent months or even years optimizing a website to increase search rankings. With the growth in popularity of social media sites and blogs the leading engines made changes to their algorithms to allow fresh content to rank quickly within the search results.[34]
Hey, Matt! Thank you for your sharing, and I learned much from it, but I still have a question. We began to do SEO work for our site 2 years ago, and our organic traffic grew 5 times ( from 8K to 40K every day). But two years later, it is very difficult to get it grow more, even it drop to 3.2K every day. So can you give me any advice to make our site's traffic grow again? Thank you in advance!
At our agency, we work with sites of varying sizes, from very large to quite small, and recently, we have noticed a trend at the enterprise level. These sites aren’t relying as much on Google for traffic any more. Not only are they not relying on Google traffic, but also, the sites are getting less than 10 percent (or slightly more) of their organic traffic from the search giant.