Searchable peer-to-peer system through instant messaging based topic indexes

1. A computer program product for locating information on a topic within a peer-to-peer network, the computer program product comprising:

one or more non-transitory computer-readable storage media and program instructions stored on the one or more non-transitory computer-readable storage media, the program instructions comprising:

program instructions to receive, on a first peer computer within the peer-to-peer network, a request to locate a topic;

program instructions to determine a second peer computer within the peer-to-peer network to query for the topic;

program instructions to query an index of the second peer computer for the topic;

responsive to determining the topic exists in the index of the second peer computer, program instructions to receive identification information of participants of an instant messaging conversation corresponding to the topic;

program instructions to determine the received identification information originated from a currently unavailable peer computer, wherein the currently unavailable peer computer previously pushed an index with the identification information to the second peer computer; and

program instructions to store, on the first peer computer, the identification information of the participants and indexing the stored identification information by the topic.

2. The computer program product of claim 1 , further comprising, stored on the one or more non-transitory computer-readable storage media:

program instructions to receive, at the first peer computer, a query from a third peer computer within the peer-to-peer network for a separate topic;

program instructions to identify an instant messaging conversation stored on the first peer computer that corresponds to the separate topic; and

program instructions to send identification information of participants of the instant messaging conversation that corresponds to the separate topic to the third peer computer.

3. The computer program product of claim 1 , wherein said receiving the request to locate the topic comprises, program instructions to receive the request from a third peer computer within the peer-to-peer network.

4. The computer program product of claim 1 , further comprising program instructions, stored on the one or more non-transitory computer-readable storage media:

program instructions to request the transcript of the instant messaging conversation from a computer operated by one of the participants of the instant messaging conversation; and

program instructions to receive the transcript of the instant messaging conversation on the first peer computer.

5. The computer program product of claim 4 , wherein the second peer computer is a computer operated by one of the participants of the instant messaging conversation.

6. The computer program product of claim 4 , wherein the second peer computer is not a computer operated by one of the participants of the instant messaging conversation.

7. The computer program product of claim 1 , wherein said determining the second peer computer to query for the topic, comprise program instructions, stored on the one or more non-transitory computer-readable storage media, to identify a user name in a contact list of an instant messaging program operating on the first peer computer, wherein the second peer computer corresponds to the user name.

8. The computer program product of claim 7 , further comprising program instructions, stored on the one or more non-transitory computer-readable storage media:

prior to identifying the user name in the contact list, wherein the second peer computer corresponds to the user name;

program instructions to query a computer corresponding to a different user name in the contact list to locate the topic; and

program instructions to receive a notification from the computer corresponding to the different user name that the topic has not been found.

9. A computer system for locating information on a topic within a peer-to-peer network, the computer system comprising:

one or more processors;

one or more non-transitory computer-readable storage media;

program instructions stored on the one or more non-transitory computer-readable storage media for execution by at least one of the one or more processors, the program instructions comprising:

program instructions to receive, on a first peer computer within the peer-to-peer network, a request to locate a topic;

program instructions to determine a second peer computer within the peer-to-peer network to query for the topic;

program instructions to query an index of the second peer computer for the topic; responsive to determining the topic exists in the index of the second peer computer, program instructions to receive identification information of participants of an instant messaging conversation corresponding to the topic;

program instructions to determine the received identification information originated from a currently unavailable peer computer, wherein the currently unavailable peer computer previously pushed an index with the identification information to the second peer computer; and

program instructions to store, on the first peer computer, the identification information of the participants and indexing the stored identification information by the topic.

10. The computer system of claim 9 , further comprising program instructions, stored on the one or more non-transitory computer-readable storage media:

program instructions to receive, at the first peer computer, a query from a third peer computer within the peer-to-peer network for a separate topic;

program instructions to identify an instant messaging conversation stored on the first peer computer that corresponds to the separate topic; and

program instructions to send identification information of participants of the instant messaging conversation that corresponds to the separate topic to the third peer computer.

11. The computer system of claim 9 , wherein said receiving the request to locate the topic comprises, program instructions to receive the request from a third peer computer within the peer-to-peer network.

12. The computer system of claim 9 , further comprising program instructions, stored on the one or more non-transitory computer-readable storage media:

program instructions to request the transcript of the instant messaging conversation from a computer operated by one of the participants of the instant messaging conversation; and

program instructions to receive the transcript of the instant messaging conversation on the first peer computer device.

13. The computer system of claim 12 , wherein the second peer computer is a computer operated by one of the participants of the instant messaging conversation.

14. The computer system of claim 12 , wherein the second peer computer is not a computer operated by one of the participants of the instant messaging conversation.

15. The computer system of claim 9 , wherein said determining the second peer computer to query for the topic, comprise program instructions, stored on the one or more non-transitory computer-readable storage media, to identify a user name in a contact list of an instant messaging program operating on the first peer computer, wherein the second peer computer corresponds to the user name.

16. The computer system of claim 15 , further comprising program instructions, stored on the one or more non-transitory computer-readable storage media:

prior to identifying the user name in the contact list, wherein the second peer computer corresponds to the user name;

program instructions to query a computer corresponding to a different user name in the contact list to locate the topic; and

program instructions to receive a notification from the computer corresponding to the different user name that the topic has not been found.