All items listed, unless otherwise noted, are located in the reference area. A nice basic introduction to why science should matter to the average citizen as well as an introduction to the basic concepts of science. 1991- Witty and profound remarks on, about, or from science, includes a decent index. Another fairly extensive dictionary, includes many illustrations. A 20 volume set with articles written by thousands of subject experts.
Articles range from long to short, are well illustrated and include bibliographies.
An excellent 16 volume source for lengthly essays with bibliographies on, for the most part, dead scientists. S365 - A very important index that allows the user to track who's been citing who in the literature. Also allows key words from title, and author searching. WWW guides to Science resources - It is important to note that anyone can publish information on the Internet. You need to be very careful about evaluating and citing information found on the Web.