Monday, August 4, 2008

Google AdSense
Google AdSense is an ad-serving program operated by Google that provides relevant text, image, and video-based advertisements to enrolled site owners. Advertisers register via Google AdWords and pay for ads on a Pay-Per-Click, Cost-Per-Thousand or Cost-Per-Action basis. This revenue is shared with Google AdSense host sites, typically on a PPC basis (which sometimes leads to Click Fraud). Google uses its search Algorithms and Contextual Link Inventory to display the most appropriate ads based on site content, Query relevancy, ad “quality scores,” and other factors.

Google AdWords
Google AdWords is the Keyword Submission program that determines the advertising rates and keywords used in the Google AdSense program. Advertisers bid on the keywords that are relevant to their businesses. Ranked ads then appear as sponsored links on Google Search Engine Results Pages (SERPS) and Google AdSense host sites.

Graphical Search Inventory (GSI)
Graphical Search Inventory is the visual equivalent of Contextual Link Inventory. GSI is non-text-based advertising such as Banner Ads, pop-up ads, browser toolbars, animation, sound, video and other media that is synchronized to relevant Keyword queries.

Gray Hat SEO
Gray hat SEO refers to Search Engine Optimization strategies that fall in between Black Hat SEO and White Hat SEO. Gray hat SEO techniques can be legitimate in some cases and illegitimate in others. Such techniques include Doorway Pages, Gateway Pages, Cloaking and duplicate content.

Hidden Text

Hidden text is a generally obsolete form of Black Hat SEO in which pages are filled with a large amount of text that is the same color as the background, rendering keywords invisible to the human eye but detectable to a search engine Crawler. Multiple Title Tags or HTML comments are alternative hidden text techniques. Hidden text is easily detectable by search engines and will result in Blacklisting or reduced Rank.

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