I think your numbers sound about right. If you assume each user subscribes to 15 sites, that's 30c per site per month after transaction costs, so a special interest blog with a thousand visitors nets $1,080 a year. Semi-pro mommybloggers and the like get $20,000. BoingBoing at a couple of million unique impressions, $2.2 million.
That seems lower than one might hope for as a content producer but maybe higher than an average consumer might want to pay as per month - about the right number? It makes sense that as the market approaches perfect competition (no barriers to entry, no information inequalities, no transport costs) it gets pretty hard to make abnormal returns - supply just ramps up until there is less per head.
This could be a nice channel for incentivising content that doesn't work well with an advertising model, for example RSS feeds. It'll be interesting to see whether they can market this well enough though.
That seems lower than one might hope for as a content producer but maybe higher than an average consumer might want to pay as per month - about the right number? It makes sense that as the market approaches perfect competition (no barriers to entry, no information inequalities, no transport costs) it gets pretty hard to make abnormal returns - supply just ramps up until there is less per head.
This could be a nice channel for incentivising content that doesn't work well with an advertising model, for example RSS feeds. It'll be interesting to see whether they can market this well enough though.