Paid Search Marketing Channel (or what is paid search traffic in Google Analytics) Paid search marketing channel can be made up of any number of traffic sources as long as the medium of the traffic sources is 'CPC', 'ppc' or 'paidsearch' and Ad Distribution Network' does not matches 'content'.
Paid Search is in a silo under Advertising (where nothing else exists, all other ... But what Google Analytics taketh away (the ability to do sane straight ... Average Value, Revenue) metrics and Key Performance Indicators.
Google's AdWords service is paid search. Google Adwords is the system Google has developed to assist you in marketing your ervices in the Google Search Engine. The system is a pay per click system; this means you can dictate where your ad appears through bidding for a series of phrases. This keyword tool is a pretty good way to establish a baseline list of Adwords keyword ideas for your website.