Although I have not used AdRocket, a friend talked to me about it and I would imagine that it would primarily be good for companies which offer a wide range of commercial products, or auction houses. Because of the variety, sharing this data and finding matches would more easily allow personal profiles to be built. As a consumer my favorite experiences with advertisements are the 'you may also like...' or 'find similar items...' services. This is not an easy task by any means, but if they do this successfully and possibly also allow consumers to use AdRocket to be used as a search or recommendation engine then they may really be on to something!