1. A content management and distribution system, comprising: a computer system comprising one or more computing devices; a network interface; and a computer storage system comprising a non-transitory storage device, said computer storage system having stored thereon executable program instructions that direct the computer system to at least: receive a first plurality of content contributor profiles from a first content requester; receive a second plurality of content contributor profiles from a second content requester; maintain a data store comprising: the received first plurality of content contributor profiles, the first plurality of content contributor profiles comprising an identification of a profession associated with a respective content contributor, wherein the identified profession in at least one of first plurality of content contributor profiles includes at least one of the following: athlete, actor, agent, athlete scout, medical expert, or celebrity, and an indication that the first plurality of contributor profiles is associated with the first content requester; the received second plurality of content contributor profiles, the second plurality of content contributor profiles comprising an identification of a profession associated with a respective content contributor, wherein the identified profession in at least one of second plurality of content contributor profiles includes at least one of the following: athlete, actor, agent, athlete scout, medical expert, or celebrity, and an indication that the second plurality of contributor profiles is associated with the second content requester; and identify a first entity accessing the content management and distribution system; in response to determining that the first entity is the first content requester, provide the first entity with access to the first plurality of content contributor profiles and prevent access to the second plurality of content contributor profiles, or in response to determining that the first entity is the second content requester, provide the first entity with access to the second plurality of content contributor profiles and prevent access to the first plurality of content contributor profiles; identify, to the first entity, at least a portion of the content contributors that the first entity is permitted access to; receive, via a content request user interface, a request for new content from the first entity, the content request comprising: a selection of a set of content contributors from a user interface that lists, using assigned set identifiers, a plurality of content contributor sets previously defined by the first entity and/or one or more specifically identified content contributors; a content subject matter specification provided via a content subject matter interface, including a request for video and audio content of a content contributor discussing a first specified subject; text that a responding content contributor is to read while an audio video recording is made of the responding content contributor; and response deadline timing information; transmit, using the network interface, at least a portion of the content request, including the content subject matter specification, text, and deadline timing information, to respective computer devices of the selected set of content contributors and/or of the one or more specifically identified content contributors, wherein the respective computer devices are to display the request, and at least partly in response to a given contributor providing a first input, prompt the given contributor to capture the requested video and audio content and to read the text during the capture of the requested video and audio content; receive an indication from one or more of the computer devices of the selected set of content contributors and/or of the one or more specifically identified content contributors, that recorded video and audio content, recorded using a respective computer device camera, is being provided to a cloud-based non-transitory storage system, wherein the video and audio content is provided to the cloud-based non-transitory storage system via an application programming interface (API); provide, over a network, the first entity with access to items of content captured by a respective computer device using a camera from one or more content contributors and stored on the cloud-based non-transitory storage system; and provide a control enabling the first entity to at least stream or to at least download one or more of the items of content from the cloud-based non-transitory storage system to a system associated with the first entity; enable a second content contributor to stream from the cloud-based non-transitory storage system a first item of content captured by a computer device of a first content contributor responding to the request for new content, and to record a comment comprising audio and video on at least the streamed first item of content captured by the computer device of the first content contributor; link the recorded comment from the second content contributor with the first item of content from the first content contributor, for which the recorded comment is being provided; display a visual indication of a parent-child relationship with respect to the recorded comment from the second content contributor and the first item of content from the first content contributor, for which the recorded comment is being provided.