Well I did alittle research. The company who published Quilters Home was bought by another company and came in and started letting go people Mark worked with. He didn't like that so he left too, they are the same company who puts on the internet show he was doing with Alex Anderson, he is not on that anymore.
Now this information is what I have picked up on the net, nothing from his mouth though. I found comments from him that just said he was moving on to better things and not to worry he'd still be around.
I really do miss his humor in the magazine, the earlier poster who said that the new people are trying to imitate him is right. they are not very good.
i just don't know why they are still using his picture on order post cards that is very mis representing.