Whether your favourite search engine is Google, Bing, DuckDuckGo or something else, it is often useful to compare your results across engines – they all search different subsections of the web and rate their results with different algorithms
A multidisciplinary search engine for Open Access resources with scientific content. Covers many university institutional repositories and publisher sites.
Search the full-text of books. Note that for copyright reasons full-text is often not available for reading online but you may find an excerpt or table of contents.
"A site for the display and study of macromolecules. [...] We have found the types of displays represented here invaluable in gaining an appreciation for the details of key biochemical processes."
