Abstract: Content-based navigation of an electronic device includes receiving supplemental content to an electronic book. The supplemental content is created separately from the electronic book. The content-based navigation also includes associating an identifier of the electronic book with the supplemental content, storing the supplemental content with the identifier in a storage device, and creating an index to the supplemental content that is searchable by the identifier of the electronic book. The content-based navigation further includes providing end user devices with access to the supplemental content in the storage device via the index.

Abstract: Content-based navigation of an electronic device includes receiving supplemental content to an electronic book. The supplemental content is created separately from the electronic book. The content-based navigation also includes associating an identifier of the electronic book with the supplemental content, storing the supplemental content with the identifier in a storage device, and creating an index to the supplemental content that is searchable by the identifier of the electronic book. The content-based navigation further includes providing end user devices with access to the supplemental content in the storage device via the index.

Abstract: Implementing security access includes mapping input elements of an input device to a coordinate system. Each of the input elements is assigned to a point on the coordinate system that is defined by respective coordinate values. The security access also includes receiving a number of inputs via corresponding input elements. An input element assigned to a first input of the number of inputs is denoted as a starting point for a sequence. Beginning with an input in the sequence that immediately follows the first input in the sequence, the security access further includes identifying a directional orientation of each of the input elements as compared to an input element immediately preceding the input element in the sequence, creating a directional pattern sequence from the directional orientation identified for each of the input elements, and providing access to an information source using the directional pattern sequence as an authentication mechanism.

Abstract: Content-based navigation of an electronic device includes receiving supplemental content to an electronic book. The supplemental content is created separately from the electronic book. The content-based navigation also includes associating an identifier of the electronic book with the supplemental content, storing the supplemental content with the identifier in a storage device, and creating an index to the supplemental content that is searchable by the identifier of the electronic book. The content-based navigation further includes providing end user devices with access to the supplemental content in the storage device via the index.

Abstract: Content-based navigation of an electronic device includes receiving supplemental content to an electronic book. The supplemental content is created separately from the electronic book. The content-based navigation also includes associating an identifier of the electronic book with the supplemental content, storing the supplemental content with the identifier in a storage device, and creating an index to the supplemental content that is searchable by the identifier of the electronic book. The content-based navigation further includes providing end user devices with access to the supplemental content in the storage device via the index.

Abstract: Implementing security access includes mapping input elements of an input device to a coordinate system. Each of the input elements is assigned to a point on the coordinate system that is defined by respective coordinate values. The security access also includes receiving a number of inputs via corresponding input elements. An input element assigned to a first input of the number of inputs is denoted as a starting point for a sequence. Beginning with an input in the sequence that immediately follows the first input in the sequence, the security access further includes identifying a directional orientation of each of the input elements as compared to an input element immediately preceding the input element in the sequence, creating a directional pattern sequence from the directional orientation identified for each of the input elements, and providing access to an information source using the directional pattern sequence as an authentication mechanism.

Abstract: Implementing security access includes mapping input elements of an input device to a coordinate system. Each of the input elements is assigned to a point on the coordinate system that is defined by respective coordinate values. The security access also includes receiving a number of inputs via corresponding input elements. An input element assigned to a first input of the number of inputs is denoted as a starting point for a sequence. Beginning with an input in the sequence that immediately follows the first input in the sequence, the security access further includes identifying a directional orientation of each of the input elements as compared to an input element immediately preceding the input element in the sequence, creating a directional pattern sequence from the directional orientation identified for each of the input elements, and providing access to an information source using the directional pattern sequence as an authentication mechanism.