Lately I've been reading alot of threads on various forums about guys/companies owning 50-100-500 micro niche websites. I'm more specifically interested in the people claiming to have unique content and such. Is it possible to make a good income from a few hundred MNS' without relying on heavy automation? Surely the outsourcing costs must run pretty high. I guess if each site pulls in $1 a day from Adsense that's more than enough to cover the cost of things? Is this a solid business model?