Denver, Colorado-based NewsGator Technologies said today that it has partnered with public relations firm Edelman to market a jointly developed product in the social media space. The companies said they are creating topic-based communities called "Hosted Conversations" which will allow brands to sponsor moderated conversations on their products. The community will include hand-picked, aggregated RSS feeds from new media, blog, and other social media sites. The new product also includes embeddable ad widgets which can pull up live feeds in ad units, branded by the advertiser and displayed as advertising. NewsGator is a provider of RSS aggregation tools and software.