As an Internet marketing strategy, SEO considers how search engines work, the computer programmed algorithms which dictate search engine behavior, what people search for, the actual search terms or keywords typed into search engines, and which search engines are preferred by their targeted audience. Optimizing a website may involve editing its content, adding content, doing HTML, and associated coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines. Promoting a site to increase the number of backlinks, or inbound links, is another SEO tactic. By May 2015, mobile search had surpassed desktop search.[3] In 2015, it was reported that Google is developing and promoting mobile search as a key feature within future products. In response, many brands are beginning to take a different approach to their Internet marketing strategies.[4]
The exact settings on your camera will depend on your model, but there’s likely an auto option, a bunch of presets (daylight, cloudy, tungsten, etc.), and custom. Avoid auto white balance at all costs and opt for a preset or custom instead. If you have a top-of-the-line DSLR, there may also be an option to manually set the color temperature of the room, measured in Kelvin.

Many marketers think of search engines as delivering the search results or SERP (Search Engine Results Page) in the form of purely textual results. The truth is that search results can be any mix of text, images, video, audio, or other file formats. In the United States, search engines don’t simply include Google, Yahoo and Bing; they also include commerce sites such as eBay and Amazon, as well as specialty search engines such as YouTube and Hulu for video, restaurant search engines, "people" search engines such as LinkedIn, or online business directories for local results, including IYPs (Internet Yellow Pages) and sites such as Yelp, Angie's List, and others.
Another reason is that if you're using an image as a link, the alt text for that image will be treated similarly to the anchor text of a text link. However, we don't recommend using too many images for links in your site's navigation when text links could serve the same purpose. Lastly, optimizing your image filenames and alt text makes it easier for image search projects like Google Image Search to better understand your images.