Spammers protect their content against "unfair" deletion, and provide uninterrupted service to their "customers", by publishing multiple blogs, in spam blog farms . Owners of better designed spam blog farms minimise the risk to their blogs, by separating the hacking / porn / spam content (Payload), from the immediately visible Blogger blogs (Collector). Spammers use a tiered structure of blogs, in their blog farms. Collector blogs. Distributor blogs. Payload blogs. Only the Payload blogs contain easily identified hacking / porn / spam material - and only the Collector blogs are immediately visible to the abuse detection processes.