Twitter competitor Menshn has shut down after the relationship between the two co-founders, Louise Mensch and Luke Bozier, fell apart. Announcing the news in a very public way, Bozier took to his blog.  “Louise and I no longer have anything resembling a working relationship”, and that “she no longer wishes to run a company in which I own shares”. Mensch replied back with, “Apologies to all for absence over the last couple of weeks, it was due to my taking legal advice” and “…but I cannot work with Luke, and I believe his change of mind forces the just and equitable winding up of MenschBozier and therefore, of menshn” The site will be up until the end of the day. [Source: The Guardian/Menshn]