Presumably not profitable at this stage, but inside.com founded by (I believe...) Jason Calacanis to try out lots of different e-mail newsletters currently he's

Presumably not profitable at this stage, but inside.com founded by (I believe...) Jason Calacanis to try out lots of different e-mail newsletters currently he's funding it, they have some advertisers and I think they are experimenting with user pays? Another one I know of that is successfully getting a good following is www.thesizzle.com.au