1. BIOSIS Previews combines journal content from Biological Abstracts with supplemental, non-journal coverage from Biological Abstracts/RRM (Reports, Reviews, Meetings).
2. Scopus is a broadly based database: good for interdisciplinary subjects, searching for authors and tracking down citations. Its interface is flexible and easy to use.
3. Web of Knowledge also provides broad coverage and good author and citation searching. It includes Science Citation Index, Index to Conference Proceedings and Journal Citation Reports.