1. A method comprising: transmitting a first media stream from a media aggregation server to a client machine via a communications interface, the first media stream being transmitted in response to a request for the first media stream in association with a content management account, the first media stream comprising one or more media content items, the first media stream comprising text information characterizing the one or more media content items; generating a vector space search vector via a processor at the media aggregation server, the vector space search vector being generated by aggregating the text information; selecting a designated media content item for the content management account based on the generated vector space search vector; and providing the designated media content item to the client machine.