As the volume of Internet radio listeners grows and stations rush to stream their signals online, identifying a reliable and comprehensive method of revenue generation is a critical success factor. The emergence of targeted ad insertion has opened up a new world for webcasters and advertisers, with the ability to reach audiences worldwide with local content and advertisements. Yet the delivery of targeted spots is more than just audio ad insertion. It requires sophisticated inventory management and audience profiling capabilities combined with a strong sales network -- elements the partnership between Dalet and Hiwire is aiming to facilitate.