Paid Search:

Pay per Click (PPC) advertising allows sites to bid for keywords that target their desired market. These sponsored links or sponsored ads normally appear above or beside the main organic search results and allow companies to quickly boost interest for their chosen keywords. Advertisers only pay when a user clicks on their ad. Below are links to the two main PPC advertisers:

Google Adwords - https://adwords.google.com/select/Login

Yahoo Search Marketing -  http://searchmarketing.yahoo.com/en_GB/srch/?mkt=uk