WebsiteBiz, an Internet marketing agency, will develop a search-engine marketing plan designed to sell single-game tickets for the NBA’s Seattle SuperSonics.

Financial details were not disclosed.

“We believe effective search-marketing can be a powerful force in supplementing our online ticket sales and brand positioning,” said Jason Hanson, market research manager for the Seattle Supersonics and the WNBA franchise Storm.

“We chose WebsiteBiz because they have the knowledge and experience to help us leverage that power to reach our target market,” Hanson added.

WebsiteBiz develops marketing initiatives, search-engine optimization, paid search marketing, online media-buying and permission-based e-mail marketing as well as Web analytics and other services.