Disruption

Does your product or service compel other businesses to change their process?

I use Mint.com to manage my financial life online. The service is free and quite good. By entering your login credentials for all your accounts (bank, brokerage, loans, etc.) you can manage all your accounts in one place.

For one of my accounts in particular, I used to have to verify my credentials with a series of questions. No longer. Now I verify my account with a PIN number. Why the change? According to their website, it's so that they can be compatible with services like Mint.com. 

Now that's powerful.

If your product/service is pushing other companies to become compatible with you - you're clearly doing something right.