It will be very worthy and accomplished step if the restaurants will start accepting bitcoins, as the knowledge of bitcoin is increasing in a wide network. Sometimes people  dont have cash in hand, accepting bitcoins will be a comfort way for them . Accepting bitcoins in shops and restaurants will be a good way to promote bitcoin in the market and to have a great success in the future.

There are some business organizations that accept bitcoins like WorldPress (a blog wed hosting  service providers)
Wiki Leaks (accept bitcoins donations) and many more