Can I get some positive reputation??? LOL
Blind networks are usually the largest in terms of publishers, advertisers and impressions. They serve a high volume of advertising to an extensive base of mostly independent mobile publishers (mobile sites and applications), supplemented by premium publishers' unfilled inventory.
Premium blind networks tend to be medium-sized, with a higher proportion of premium publishers (i.e. big-traffic mobile sites of well-known brands, perhaps newspapers, broadcasters or operator portals), some on exclusive relationships. These networks attract a higher proportion of brand advertising, paid for on CPM basis. A lot of advertising will still be blind or semi-blind (i.e. targeted at a channel), but for a premium price you may be able to buy a specific spot on a site of your choice. Costs vary considerably - quotes can be as high as US $20 CPM.
Premium networks focus on a limited number of prestige publishers - mobile operators and big-name destinations - for which they are akin to an extension of their direct-sales team. In the case of Nokia and AOL, much of the mobile inventory they sell is on Nokia or AOL sites.
Local mobile ad networks focus on those publishers where users are known to be looking for local information e.g. somewhere to eat, the nearest shoe store, the weather downtown etc. Publishers on these networks include directory services, mapping/navigation and other sites/apps where users enter their location e.g. weather sites. As local advertising is more targeted, adverting will cost more, but will deliver better results than normal mobile ads. xAd claims that local ads perform two to four times better than normal mobile ads.