Sending out-of-band instant messages from a game networking system

1. A method comprising:

accessing an instant messaging system from a game networking system to send an out-of-band instant message to a friend of a user of the game networking system on behalf of the user, wherein the accessing is performed by a machine associated with the game networking system;

selecting the out-of-band instant message from a plurality of messages generated by the game networking system based on a level of urgency of the out-of-band instant message, one or more of the plurality of messages being transmittable as different message types based on levels of urgency of each of the plurality of messages; and

sending the out-of-band instant message to the friend of the user of the game networking system on behalf of the user, the out-of-band instant message including a request that the friend of the user perform an action with respect to a game executing on the game networking system in response to an action performed by the user with respect to the game.

2. The method of claim 1 , wherein the out-of-band instant message includes information pertaining to an action of the user with respect to a computer-implemented game executing on the game networking system.

3. The method of claim 1 , wherein the out-of-band instant message includes information pertaining to an incentive to be provided to the friend based on an accessing of the game networking system by the friend.

4. The method of claim 1 , wherein the sending of the out-of-band instant message to the friend is based on a determination that the friend is an additional user of the game networking system.

5. The method of claim 1 , wherein the sending of the out-of-band instant message to the friend is based on a determination that the friend is a friend of the user with respect to the game networking system.

6. The method of claim 4 , wherein the sending of the out-of-band instant message is based on an amount of time since the friend last accessed the game networking system.

7. A non-transitory machine-readable storage medium embodying a set of instructions that, when executed by a processor, cause the processor to perform operations, the operations comprising:

accessing an instant messaging system from a game networking system to send an out-of-band instant message to a friend of a user of the game networking system on behalf of the user;

selecting the out-of-band instant message from a plurality of messages generated by the game networking system based on a level of urgency of the out-of-band instant message, one or more of the plurality of messages being transmittable as different message types based on levels of urgency of each of the plurality of messages; and

sending the out-of-band instant message to the friend of the user of the game networking system on behalf of the user, the out-of-band instant message including a request that the friend of the user perform an action with respect to a game executing on the game networking system in response to an action performed by the user with respect to the game.

8. The non-transitory machine-readable storage medium of claim 7 , wherein the out-of-band instant message includes information pertaining to an action of the user with respect to a computer-implemented game executing on the game networking system.

9. The non-transitory machine-readable storage medium of claim 7 , wherein the out-of-band instant message includes information pertaining to an incentive to be provided to the friend based on an accessing of the game networking system by the friend.

10. The non-transitory machine-readable storage medium of claim 7 , wherein the sending of the out-of-band instant message to the friend is based on a determination that the friend is an additional user of the game networking system.

11. The non-transitory machine-readable storage medium of claim 7 , wherein the sending of the out-of-band instant message to the friend is based on a determination that the friend is a friend of the user with respect to the game networking system.

12. The non-transitory machine-readable storage medium of claim 10 , wherein the sending of the out-of-band instant message is based on an amount of time since the friend last accessed the game networking system.

13. A system comprising:

a processor operatively coupled to a memory; and

an instant-messaging module implemented by the processor based on instructions stored in the memory, the instant-messaging module configured to

access an instant messaging system from a game networking system to send an out-of-band instant message to a friend of a user of the game networking system on behalf of the user,

select the out-of-band instant message from a plurality of messages generated by the game networking system based on a level of urgency of the out-of-band instant message, one or more of the plurality of messages being transmittable as different message types based on levels of urgency of each of the plurality of messages, and

send the out-of-band instant message to the friend of the user of the game networking system on behalf of the user, the out-of-band instant message including a request that the friend of the user perform an action with respect to a game executing on the game networking system in response to an action performed by the user with respect to the game.

14. The system of claim 13 , wherein the out-of-band instant message includes information pertaining to an action of the user with respect to a computer-implemented game executing on the game networking system.

15. The system of claim 13 , wherein the out-of-band instant message includes information pertaining to an incentive to be provided to the friend based on an accessing of the game networking system by the friend.

16. The system of claim 13 , wherein the instant-messaging module is configured to send the out-of-band instant message to the friend based on a determination that the friend is an additional user of the game networking system.

17. The system of claim 13 , wherein the instant-messaging module is configured to send the out-of-band instant message to the friend based on a determination that the friend is a friend of the user with respect to the game networking system.

18. The system of claim 16 , wherein the instant-messaging module is configured to send the out-of-band instant message based on an amount of time since the friend last accessed the game networking system.

19. The system of claim 13 , wherein the instant-messaging module is configured to determine a strength of a relationship between the user and the friend, and wherein the instant-messaging module is configured to send the out-of-band instant message based on the strength of the relationship.

20. The system of claim 19 , wherein the instant-messaging module is configured to determine the strength of the relationship by accessing information about the friend from a plurality of systems, including an instant messaging system and a social networking system.