As part of the agreement, GoTo.com will provide its 7 million custom search listings to NetZero's users to assist them in finding information online.

For customer ease, GoTo will be featured on NetZero's on-screen navigational tool as well as on its home page, according to Brian Woods, senior vice president and chief marketing officer, NetZero.

"The search function is the most frequently accessed tool on our start page," he said. "Therefore, it is essential for us to offer our users a leading provider with highly-targeted listings.

"GoTo's innovative approach to delivering quality, relevant search results will provide our users with the products, services and information they're looking for on the Internet," he said. "Adding GoTo to our start page is just one more way that we continue to enhance our users' online experiences."