1. A method of managing notes, comprising: providing a plurality of notes from a first source and a second source, the first source and the second source being produced from different devices, the first source being a visual representation of a scene having one or more of the plurality of notes; recognizing, by a processing unit, at least one of the plurality of notes from the first source; extracting, by the processing unit, content of the one of the plurality of notes; and labeling each of the plurality of notes provided by the first source and the second source with a category.