Evaluating Websites
(Source: LIFE Magazine image archives hosted by Google)
Consider the following five criteria:
1. Accuracy - Is the information correct?
2. Authority - What are the author's credentials?
3. Coverage - Is the content covered comprehensively?
4. Currency - Is the information current?
5. Purpose - Is the content biased?
If you're not certain, ask a librarian!
Websites
- Clinicaltrials.gov (Service of the U.S. National Institutes of Health)Provides, up to date, results in database form on specific trials, locations, participants, and various details of clinical trials.
- Chemicool Periodic Tablealso includes chemistry dictionary, calculators, images, and YouTube chemistry clips
- WebElements Period Tableincludes element structures, periodic properties, images, etc.
- General ChemistryPhysical Quantities, Constants, Units, Conversion Formulas (from the Freie Universität Berlin)
- NIST Chemistry Web BookDatabase of chemical names, formulas, structures, molecular weights, mass spectrum graphs, gas chromatography, fluid/thermophysical properties, IUPAC identifiers, CAS registry numbers, & more (from NIST, U.S. National Institute of Standards & Technology)
- CenterwatchGlobal sources for clinical trials (news, updates, etc.)