Sorry I don't fully understand your requirement, but I annotate my
bibliography entries using the note field:
@article{articlexyz,
abstract="",
author="",
commentfield="",
journal="",
month="",
note="this is some text which I can see in the bibliography list of
the tex file.",
number="",
pages="",
title="",
volume="",
year=""
}
The tex file would contain:
...\cite{articlexyz}...
...\bibliographystyle{plainnat}
\bibliography{bibliography}...
latex at
conference.jabber.org