Abstract: A method, data processing system, and computer program product for locating people. A mobile data processing system identifies a number of degrees of separation from a requestor for use in searching for the people. The mobile data processing system searches a network data processing system for data structures that contain information about associations between the people that are within the number of degrees of separation from the requestor to generate an initial group of people. The mobile network data processing system identifies a group of people from the initial group of people that are within a geographic location based on a location of the mobile data processing system and a portion of the group of people who are online. The mobile data processing system displays the portion of the group of people on a display device for the mobile data processing system.

Abstract: A CAPTCHA challenge tool for determining if a user of a computer is a human or an automated program. The tool presents a set of images. At least a portion of the set of images suggests a chronological sequence when organized correctly. The tool receives a suggested order from the user of the computer. If the suggested order matches the correct order, the tool assumes that the user is a human, if the suggested order does not match the correct order, the tool assumes the user is an automated program.

Abstract: A CAPTCHA challenge tool for determining if a user of a computer is a human or an automated program. The tool presents to the user a set of audio clips. At least a portion of the set of audio clips suggests a chronological sequence when organized correctly. The tool receives a suggested order from the user of the computer. If the suggested order matches the correct order, the tool assumes that the user is a human, if the suggested order does not match the correct order, the tool assumes the user is an automated program.

Abstract: A CAPTCHA challenge tool for determining if a user of a computer is a human or an automated program. The tool presents a set of images. At least a portion of the set of images suggests a chronological sequence when organized correctly. The tool receives a suggested order from the user of the computer. If the suggested order matches the correct order, the tool assumes that the user is a human, if the suggested order does not match the correct order, the tool assumes the user is an automated program.

Abstract: A CAPTCHA challenge tool for determining if a user of a computer is a human or an automated program. The tool presents to the user a set of audio clips. At least a portion of the set of audio clips suggests a chronological sequence when organized correctly. The tool receives a suggested order from the user of the computer. If the suggested order matches the correct order, the tool assumes that the user is a human, if the suggested order does not match the correct order, the tool assumes the user is an automated program.

Abstract: An embodiment of the invention is a CAPTCHA program to determine if a user of a computer is a human or a computer program. The program sends to the computer an image and a portion of the image for display. The program receives from the user an indication of where the portion is located within the image. The portion, as displayed, may be altered in various ways. In response to the user properly indicating the location, the program determines that the user of the computer is a human. In response to the user not properly indicating the location, the program determines that the user of the computer is a computer program. In response to determining that the user of the computer is a human, the program grants the user access to information (database, application, program). In response to determining that the user is a computer program, the program denies access.

Abstract: A method, data processing system, and computer program product for locating people. A mobile data processing system identifies a number of degrees of separation from a requestor for use in searching for the people. The mobile data processing system searches a network data processing system for data structures that contain information about associations between the people that are within the number of degrees of separation from the requestor to generate an initial group of people. The mobile network data processing system identifies a group of people from the initial group of people that are within a geographic location based on a location of the mobile data processing system and a portion of the group of people who are online. The mobile data processing system displays the portion of the group of people on a display device for the mobile data processing system.