Search Engine Marketing is the foundation of any business seeking to be in front of an audience of potential clients searching for your product or service online. Within Search Engine Marketing there is paid sponsored guaranteed advertising which can be seen on the top and right side of Search Engines such as Google and Yahoo.

There is also what is knows as Natural/Organic Search Engine Optimization which is the art of optimizing a website to gain better results within the non paid results. This is the ultimate form of pull marketing which can be done and is usually one of the most efficient sources of traffic depending on competition and search volume.


Google
Google offers by far the top PPC system offering a high volume of traffic and user friendly control panel.
Yahoo Search Marketing
Yahoo Search Marketing is a great option especially for agencies seeking U.S traffic as the volumes in international traffic are quite low.

Bing Search Marketing
What Bing lacks in volumes they gain in conversion rates and targeting capabilities as Bing offers the ability to use demographic targeting from information they hold.
Miva Search Marketing
Miva is a smaller search marketing channel but has proven successful in many situations it really depends on your product/service but is worth a try.

ABCSearch Marketing
ABCSearch has just launched its proprietary patent-pending fraud-prevention software; ClickShield, which dynamically identifies and blocks click fraud from reaching your ads giving new life to second tier traffic.
7 Search Marketing
7 Search is not a very well know search marketing channel but has proved in more than one occasion that they can deliver quality traffic at a low rate