Yahoo! Inc. announced it has bought AdInterax, a provider of rich media advertising solutions to online publishers.

The acquisition of AdInterax will enable Yahoo! to provide advanced rich media creative assembly and campaign management tools directly to marketers at no charge as part of Yahoo's graphical advertising offerings, according to a company statement.

"The Yahoo acquisition of AdInterax complements our business nicely as it should help Eyeblaster's agency-focused business deliver even more campaigns on Yahoo around the globe. The Eyeblaster and Yahoo relationship has seen consistently strong growth throughout this year, and we see this acquisition furthering that growth," says Eyeblaster CEO Gal Trifon.

Financial terms were not disclosed.

"Creativity in advertising is critical to the further adoption of the internet as a marketing medium, and Yahoo is committed to giving marketers more creative choice and control over their ads," says Greg Coleman, executive vice president of global media sales, Yahoo. "We look forward to working with our customers and AdInterax's publisher partners to generate new and innovative solutions for marketers that help simplify the rich media creation and purchasing process."