Methods and media for exchanging data between nodes of disconnected networks

1. A method for exchanging data between nodes of disconnected networks, the method comprising:

receiving a query including at least one keyword or at least.a portion of a uniform resource identifier via a user interface of a first node;

determining in the first node a query type based on whether the query includes at least one keyword or at least a portion of a uniform resource identifier;

performing a search of a cache of the first node based on the query and the query type;

converting the query into a formatted query document;

storing the formatted query document in a database of the first node, if the search of the cache does not yield at least a predetermined number of data items;

retrieving the formatted query document from the database of the first node at a predetermined interval;

multicasting the retrieved formatted query document from the. first node to at least a second node;

receiving, at the first node, a formatted response document from the second node, the formatted response document resulting from a search of a cache of the second node;

converting the formatted response document into a display document; and

presenting the displaying document to the user via the user interface of the first node.

2. The method of claim 1 , wherein the predetermined number of data items is set to at least ten if the query is a keyword-type query and is set to one if the query is uniform resource identifier-type query.

3. The method of claim 1 , wherein the predetermined interval is at least one of random and periodic.

4. The method of claim 1 , wherein both the formatted query document and the formatted response document are XML documents.

5. The method of claim 1 , wherein the formatted response document includes at least one of an embedded text file, music file, webpage, and video file.

6. The method of claim 1 , further comprising:

receiving, at the first node, a formatted query document from the second node; and

sending a formatted response document to the second node based on a search of the cache of the first node based on the formatted query document received from the second node.

7. The method of claim 1 , further comprising:

receiving an e-mail via a user interface of the first node; and

multicasting the e-mail to at least the second node with a request that the second node deliver the e-mail.

8. The method of claim 1 , wherein the first node is at least one of a personal digital assistant, laptop computer, and portable telephone.

9. A non-transitory computer-readable medium storing computer-executable instructions that, when executed by a processor, cause the processor to perform a method for exchanging data between nodes of disconnected networks, comprising:

receiving a query including at least one keyword or at least a portion of a uniform resource identifier via a user interface of a first node;

determining in the first node a query type based on whether the query includes at least one keyword or at least a portion of a uniform resource identifier;

performing a search of a cache of the first node based on the query and the query type;

converting the query into a formatted query document;

storing the formatted query document in a database of the first node, if the search of the cache does not yield at least a predetermined number of data items;

retrieving the formatted query document from the database of the first node at a predetermined interval;

multicasting the retrieved formatted query document from the first. node to at least a second node;

receiving, at the first node, a formatted response document from the second node, the formatted response document resulting from a search of a cache of the second node;

converting the formatted response document into a display document; and

presenting the displaying document to the user via the user interface of the first node.

10. The non-transitory computer readable medium of claim 9 , wherein the predetermined number of data items is set to at least ten if the query is a keyword-type query and is set to one if the query is uniform resource identifier-type query.

11. The non-transitory computer readable medium of claim 9 , wherein the predetermined interval is at least one of random and periodic.

12. The non-transitory computer readable medium of claim 9 , wherein both the formatted query document and the formatted response document are XML documents.

13. The non-transitory computer readable medium of claim 9 , wherein the formatted response document includes at least one of an embedded text file, music file, webpage, and video file.

14. The non-transitory computer readable medium of claim 9 , wherein the method. further comprises:

receiving, at the first node, a formatted query document from the second node; and

sending a formatted response document to the second node based on a search of the cache of the first node based on the formatted query document received from the second node.

15. The non-transitory computer readable medium of claim 9 , wherein the method further comprises:

receiving an e-mail via a user interface of the first node; and

multicasting the e-mail to at least the second node with a request that the second node deliver the e-mail.

16. The non-transitory computer readable medium of claim 9 , wherein the first node is at least one of a personal digital assistant, laptop computer, and portable telephone.