Twitter allows companies to promote their products in short messages known as tweets limited to 140 characters which appear on followers' Home timelines.[33] Tweets can contain text, Hashtag, photo, video, Animated GIF, Emoji, or links to the product's website and other social media profiles, etc.[34] Twitter is also used by companies to provide customer service.[35] Some companies make support available 24/7 and answer promptly, thus improving brand loyalty and appreciation.

Often the line between pay per click advertising and paid inclusion is debatable. Some have lobbied for any paid listings to be labeled as an advertisement, while defenders insist they are not actually ads since the webmasters do not control the content of the listing, its ranking, or even whether it is shown to any users. Another advantage of paid inclusion is that it allows site owners to specify particular schedules for crawling pages. In the general case, one has no control as to when their page will be crawled or added to a search engine index. Paid inclusion proves to be particularly useful for cases where pages are dynamically generated and frequently modified.

Another ethical controversy associated with search marketing has been the issue of trademark infringement. The debate as to whether third parties should have the right to bid on their competitors' brand names has been underway for years. In 2009 Google changed their policy, which formerly prohibited these tactics, allowing 3rd parties to bid on branded terms as long as their landing page in fact provides information on the trademarked term.[27] Though the policy has been changed this continues to be a source of heated debate.[28]

Online marketing is the practice of leveraging web-based channels to spread a message about a company’s brand, products, or services to its potential customers. The methods and techniques used for online marketing include email, social media, display advertising, search engine optimization, Google AdWords and more. The objective of marketing is to reach potential customers through the channels where they spend their time reading, searching, shopping, and socializing online.
Affiliate Marketing: Affiliate marketing is one of the oldest forms of marketing, and the internet has brought new life to this old stand-by. With affiliate marketing, you promote other people’s products, and you get a commission every time you make a sale or introduce a lead. Many well-known companies like Amazon have affiliate programs that pay out millions of dollars per month to websites that sell their products.
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