Of course, by the time I write this the Biosciences page might be updated. Infomine is managed by Steve Mitchell from the University of California, Riverside. This is a very well organized directory that includes over 2200 resources and 500 databases. Information can be browsed by table of contents, subject, keyword, and title. Subject headings are based on the LC subject classification with some editing.
Users can search the holdings by keyword, title, and subject.
Reference directory is a well-organized list of valuable sites. The descriptions of the sites are primarily taken from the WWW pages and do not include evaluations of the strengths and weaknesses of the sites. The Ejournal listing is useful, but jealousy producing if you do not have a UC password. Sites are not described, but are organized by subject and specialty. Comprehensive directories, selected articles, conferences and educational materials break down the subject specialities.