A webmaster forum advertises a program that allows anyone to have their own pinterest clone.
As it turns out, Pinterest's site is easy as pie to code. Everyone is doing it.
Pinterest now has "business accounts." As far as I can tell, the only difference is that you can have a link to your business in your profile. However, once an account holder ceases to be an individual account, and becomes associated with business interest (even a small business), copyright holders might be much bolder with the lawsuits. They may expect to be suing deeper pockets, and fewer excuses.