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.
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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.