Apart from the Google AdWords, there are many other popular PPC Advertising programs that are run by other search engines. Some of the popular PPC programs are discussed below:

Overture PPC Advertising
Overture Precision Match is one such PPC program that helps advertisers to reach their target audience easily. These advertisements are basically placed in search engine networks like CitySearch, AltaVista, MSN, Sympatico.ca, Knight Rider, Wall Street Journal.com, Consumer Review Network, Advertising.com, InfoSpace, Edmunds etc.

If you want effective PPC advertisements then you can choose the 'Precision Match' and 'Content Match' that can be uploaded with matching content or products. It also offers a package called Local Match that helps local customers to upload advertisement as per their preferences. It also offers other benefits like google.

FindWhat PPC Program
FindWhat PPC campaign is a little different as well as more popular as compared to Adwords and Overture. In this PPC campaign the joining fee is $25. It also comes with an additional feature known as the Pay per Call program, where the customer is charged only when a user actually makes a call to his number.

The PPC campaigns under this network are mostly published in websites like MetaCrawler, Dogpile, Go2Net, NBCi, Go2Net, Webcrawler and the CNET's Search.com etc.  With services from FindWhat advertising you can achieve relevant research results which in the long run increase the conversion rate. Recently FindWhat has tied up with Espotting, a popular PPC campaign provider in Europe, to provide better services to its advertisers.

Kanoodle PPC program
Kanoodle has a PPC campaign that functions through three different methods: context target, behavior target and keyword target. Through these Kanoodle is able to display advertisements to potential customers. It also maintains quality by guaranteeing popular search engine display and quality editing of advertising content. These PPC advertisements are displayed on AutoBytel.com, MarketWatch, MSNBC.com, webcrawler, USAToday.com and dogpile.

Some of the other search engines that offer PPC programs are Enhance Interactive, SearchFeed, 7Search, Search123, ePilot, and GoClick.