I haven't gotten any replacement blades yet...am still searching for a good place. I only got the saw about 2 yrs ago from a luthier who builds electric bases in his basement workshop, and he gave me all the blades that he had for it at the time - a 1/2, a couple 1/4s , a couple 3/8s, and three 1/8s.
There is a Rockler Woodworking shop about 30 mins from home, they may have the size I need(90 inches, for a 12" Sears bandsaw). I can always go online via Amazon, I guess...me be one of those Timberwolf blades that seem to be the rage right now.