A bibliography is a list of citations put together on a topic of interest.
An annotation is a commentary. It can include a summary of the reading, the reader’s response, and/or questions/comments addressing the article’s clarity, purpose, or effectiveness.
An annotated bibliography is an alphabetical list of research sources to inform the reader of the relevance, accuracy, and quality of the sources cited-- books, articles, and documents. Each citation is followed by a brief descriptive and evaluative paragraph, called the annotation.