Theres lots of article spinners in the member downloads section of this forum.
The SENuke does spinned article submitting to blogspot, wordpress, wikispaces, us free ads, AC, and some others. But WP and blogspot it creates a new blog for every article submission. It does submission for MU WP too.
What I'm looking for is a software that submit the spinned article for a list of my own WP blogs, mainly MU WP. Something like the MS Word poster, but post spinned article and in mass. Does anyone have an idea of what I can find on that??