Following are external links and resources we find useful.

• PubMed
  Find citations of biomedical literature
• Retroviruses
  The National Center for Biotechnology Information provides information about retroviruses and specialized tools for the analysis of retroviral proteins and genomes
• WHO HIV/AIDS
  Find news an data from this deparment of the World Health Organization
• HIV Database
  Access data on HIV genetic sequences, immunological epitopes, drug resistance-associated mutations, and vaccine trials
• AIDS Reagent Program
  Discover this resource of state-of-the art reagents for HIV and other pathogens
• Microtubules
  Reference this insightful section of The Cell: A Molecular Approach
• Microtubule Motors
  Read this section of Molecular Biology of the Cell, the in-depth text reference in cell biology