http://scholar.google.com includes PubMed and many online article archives. Does not include many other important online databases like BioSis, Agricola, ANTH, etc. Still, it's a tool worth trying. One issue: most of the links require payment - limited free content as most academic articles require subscription or per-article fee payment. These per-article fees range from $10-50 or more, depending on the greed of the publisher. PS as the articles are controlled-access, there is no cache feature. Tom Billings