A business partner may be a founding-partner or a co-owner who has equal interest in making the business successful.
A business partner may also be a marketing partnership, technological development partnership or a support team partnership.
Whatever the partnership may be it plays a very essential role is business success.
Sometime a business partner is like a life partner or spouse. As a good life partner makes your life successful so does, a good business partner make your business successful.
This blog post on BothSidesOfTheTable talks about partnership with individuals – what you should look for and in return, how you should be with your partner.
It talks about trust and commitment. And how partners need to be there for each other in good and bad times.
Here is where you can read this nice post: What Makes a Great Business Partner.