Many of these databases have an academic orientation. ALL fees are the responsibility of the user. Additional Resources Brief Description Ready Reference Provides links to various comprehensive ready reference sites. UTPB students have found particularly helpful. Directory services use selection criteria for choosing links to include, though selectivity varies among services.
Indexing is created from the collected files, and the results are presented in a schematic order.
There is no selection criteria for the collection of files. Exercise caution when using search engines for academic research. A basic introduction to the concepts of Boolean searching. Particularly useful if you are relying on search engines as a research tool. Evaluating Internet Resources Not all print sources are equally valuable or accurate, similarly internet resources vary substantially in quality.