Triggering actions in response to optically or acoustically capturing keywords from a rendered document

1. A method in a computing system, comprising:

receiving, by a processor of the computing system, a sequence of one or more words optically or acoustically captured from a rendered document by a user;

identifying, by a processor of the computing system, among the words of the sequence a word with which an action has been associated; and

performing the associated action by a processor of the computing system.

2. The method of claim 1 , wherein the action is associated with the identified word by virtue of sponsorship of the action by a third party.

3. The method of claim 2 , wherein performing the associated action includes presenting an advertising message to the user on behalf of the third party.

4. The method of claim 1 , wherein the associated action is displaying information on a display device near the user.

5. The method of claim 1 , wherein the associated action is sending an email message to the user.

6. The method of claim 1 , wherein the associated action is sending an email message from the user to a recipient associated with the rendered document.

7. The method of claim 1 , wherein the associated action is printing information on a printer near the user.

8. The method of claim 1 , further comprising selecting an associated action for performance, wherein a plurality of actions have been associated with the identified word.

9. The method of claim 8 , wherein the selecting is based at least in part upon attributes of the rendered document.

10. The method of claim 9 , wherein the selecting is based at least in part upon the identity of the rendered document.

11. The method of claim 9 , wherein the selecting is based at least in part upon a group of documents of which the rendered document is a member.

12. The method of claim 9 , wherein the selecting is based at least in part upon the type of the rendered document.

13. The method of claim 9 , wherein the selecting is based at least in part upon the source of the rendered document.

14. The method of claim 8 , wherein the selecting is based at least in part upon attributes of the user.

15. The method of claim 14 , wherein the selecting is based at least in part upon the identity of the user.

16. The method of claim 14 , wherein the selecting is based at least in part upon the location of the user.

17. The method of claim 14 , wherein the selecting is based at least in part upon a group of people of which the user is a member.

18. The method of claim 1 , wherein the action was associated with the identified word after the rendered document was authored.

19. The method of claim 1 , wherein the action was associated with the identified word after the rendered document was rendered.

20. The method of claim 1 , wherein the action is associated with the identified word for only the rendered document.

21. The method of claim 20 , wherein the action is associated with the identified word for the rendered document by an action map generated for the rendered document.

22. The method of claim 20 , wherein the action is associated with the identified word for a proper subset of the rendered document by an action map generated for the rendered document.

23. The method of claim 1 , wherein the action is associated with the identified word for a group of documents of which the rendered document is a member.

24. The method of claim 1 , wherein the action is associated with the identified word for all documents.

25. A system for responding to the capturing of text from a rendered document, comprising:

a handheld optical and/or acoustical capture device usable by a user to capture a sequence of one or more words from a rendered document; and

a processor that identifies among the words of the sequence captured with the handheld optical and/or acoustical capture device a word with which an action has been associated, and that performs the associated action.

26. The system of claim 25 wherein the handheld optical and/or acoustical capture device includes a locator component that determines the location of the handheld optical and/or acoustical capture device, and wherein the system further comprises at least one memory whose contents specify associations between combinations each of a word and a location and an action.

27. A computer-readable medium containing a data structure mapping keywords to actions, the data structure comprising:

for each of a plurality of keywords that may be captured from rendered documents using a handheld optical and/or acoustical capture device, an entry containing information specifying an action to be performed with respect to a user who captures the keyword from a rendered document using a handheld optical and/or acoustical capture device.

28. The computer-readable medium of claim 27 , wherein at least one entry of the data structure applies to all documents.

29. The computer-readable medium of claim 27 , wherein at least one entry of the data structure applies to a group of documents.

30. The computer-readable medium of claim 27 , wherein at least one entry of the data structure applies to a single document.

31. The computer-readable medium of claim 27 , wherein a first entry of the data structure for a selected keyword applies to a group of documents, and a second entry of the data structure for the selected keyword applies to a single document, and wherein the second entry is used to determine an action to be performed with respect to a user who captures the selected keyword from the single document.

32. The computer-readable medium of claim 27 , wherein at least a portion of the entries were added to the data structure in response to the payment of a sponsorship fee.

33. The computer-readable medium of claim 27 , wherein at least a portion of the entries contain information specifying an action of presenting an advertising message.

34. The method of claim 1 , wherein performing the associated action includes automatically performing an action without receiving feedback from the user.

35. The method of claim 1 , further comprising:

presenting a menu to the user, wherein the menu includes two or more user selectable actions associated with the word;

receiving input from the user to select one of the user selectable actions; and

performing the selected action.

36. The method of claim 35 , wherein the menu is presented to the user via a mobile phone associated with the user.

37. The method of claim 35 , wherein the menu is presented to the user via a mobile phone that optically or acoustically captured the received sequence.

38. The method of claim 35 , wherein the menu is presented to the user via a handheld capture device that optically or acoustically captured the received sequence.

39. The method of claim 35 , wherein performing the associated action includes purchasing a product.

40. The method of claim 35 , wherein performing the associated action includes adding a calendar item to an electronic calendar associated with the user.

41. The method of claim 1 , further comprising:

determining a location of the user; and

identifying an owner of the word in the determined location; wherein performing the associated action includes presenting advertising associated with the identified owner.

42. The method of claim 41 , further comprising:

receiving a selection of the presented advertisement from the user; and

billing the owner upon receiving the selection.

43. The system of claim 25 , wherein the handheld optical and/or acoustical capture device is associated with a mobile phone.

44. The system of claim 25 , further comprising:

an indication component that alerts the user when the word with which an action has been associated has been identified.

45. A method in a computing system, comprising:

receiving, by a processor of the computing system, a sequence of human readable characters optically captured from a rendered document by a user;

identifying, by a processor of the computing system, among the sequence a subset of the sequence with which an action has been associated; and

performing the associated action by a processor of the computing system.

46. The method of claim 45 , further comprising:

presenting a menu of user selectable choices related to actions to be performed; wherein each of the user selectable choices is based on one of multiple distinguised subsets within the sequence.

47. The method of claim 46 , wherein presenting the menu includes presenting the user selectable choices in an order dependent on a span of characters of the distinguised subset.

48. A method in a computing system of selecting an action to be performed in response to an optical capture of a sequence of characters from a rendered document, the method comprising:

identifying, by a processor of the computing system, two or more actions to be performed that are associated with a markup element that includes at least one distinguised character within the sequence of characters;

determining, by a processor of the computing system for each identified action, a number of characters shared by the markup element and the sequence of characters; and

selecting, by a processor of the computing system, an action to be performed based on a comparison of the determined number of characters for each identified action.

49. A method in a computing system, comprising:

receiving, by a processor of the computing system, a sequence of one or more words optically or acoustically captured from a rendered document by a user;

identifying, by a processor of the computing system, an action to be performed associated with a location in the rendered document proximate to the received sequence; and

performing the identified action by a processor of the computing system.

50. The method of claim 49 , wherein the location partially includes the received sequence.