I am interested in creating annotated bibliographies either on a problem sheet for students or in general by writing a summary of a background literature research.
I am aware of special bib-style files (annotation.bst, annotate.bst, chicagoa.bst, plain-annote.bst, ...) which don't ignore the annotation field in the bib files (either annote, or annotate). However, as customizing bst files is far too complicated and the useful
custom-bib packages don't support this, as far as I know, I am not happy with them.
biblatex package offers such a feature which is more convenient. Also, the annotation can be written into a separate file instead to the bib-file itself as the annotation is part of my document and not of the bibliographic information. However, creating many small files for each entry makes it difficult to read and handle the document in source code.
From my point of view this problem should occurred to many people even before this biblatex package has existed.
Though my question, how do you handle these cases when creating a LaTeX document?