To look up an expert, type the person's name (again, inquotation marks); if necessary, add the name of the university where they work, the title of an article they've written, or something else that will give you more information on that person
When looking for factual information outside of Wikipedia, always find an "About" page to get an idea of who is providing the information, what they say their purpose and audience is, how their efforts are funded and if there is reason to think they have a strong bias favoring or opposing certain kinds of information
Use define: to locate definitions of words. Sample Google search: define:white paper
Realize that Google may mold your search results to you, if you're always on the same physical computer or logged in as the same user on lab computers. If you always click left/right wing political blogs, it will favor search results appearing on those blogs and others like them.