A new link called Special Queries will be added to PubMed's blue side bar.
Like the Clinical Queries link that takes you to a page providing
specialized PubMed searches for clinicians, the Special Queries link
provides access to a directory of topic-specific PubMed queries.

For more information, see the NLM Technical Bulletin at:
http://www.nlm.nih.gov/pubs/techbull/ma05/ma05_technote.html#queries