Databases for literature searching

• Pubmed
  • biomedical
• Web of Science Core Collection
  • general science
  • citation tracking
• Scifinder 
  • chemistry
  • pharmaceuticals
• Google Scholar
  • general science
• Engineering Village
  • engineering
• Scopus
  • general science
  • citation tracking
• Library Search OMNI
  • multidisciplinary

Databases for drug searching

• PubChem
• Scifinder

Databases for patent searching

• Google Patents
• Scifinder
• more info...