1. World Wide Web Basics Informatics Training for CDC Public Health Advisors

2. Points to be covered n Basic overview n The Web as an information resource n How to get around n Examples of some useful pubic health sites n Some tips

3. Overview - Internet n Computer networks linked through use of common software protocols (TCP/IP) n Applications ä e-mail, remote computer use, transferring files ä mail lists & news groups ä interactive information delivery services ä search tools

4. Overview - World Wide Web n Includes multi-media resources (sounds, pictures, video) n Accessed via “browser” software ä Netscape Navigator vs. MS Internet Explorer n Documents linked through hypertext n Enables point-and-click navigation n Following links = surfing the Web

5. Glossary n HTML - hypertext mark up language n URL - uniform resource locator = web address n hypertext = hot link = link n (home) page - a single document/file viewed with a browser ä may be several pages long ä may have subsidiary & external links

6. How to get around n Browser window layout ä pull down menus ä control panel buttons ä “location” box n Basic navigation ä important buttons: back, home, go ä Open, Home buttons ä “Where am I?”

7. Anatomy of a URL n a URL tells you ä where you are, and ä something about what you’re looking at n http://www.specific.general.domain/name.html n US domains: gov, edu, org, com, mil, net n examples: http://www.doh.wa.gov http://healthlinks.washington.edu/nwcphp/

8. Home pages n Can be institutional or personal n Logical grouping of pages constitutes a web site n Pages may also link to other sites n May provide original, local information and/or compile links to other sites

9. Uses of a home page n For user ä on ramp - convenient starting point ä quality filter - links have been selected ä organizer - can provide framework n For author ä publication - dissemination ä interactive communication or service medium ä advertisement

10. Uncle Sam on the Web n DHHS, Public Health Service ä CDC –http://www.cdc.gov/ –MMWR, WONDER, Prevention Guidelines, other databases and publications ä NIH –http://www.nlm.nih.gov/ –NLM - MEDLINE and other databases n healthfinder TM ä http://www.healthfinder.gov/

11. University sources n Healthlinks ä http://healthlinks.washington.edu/ n BioSites ä http://www.library.ucsf.edu/biosites/ n HealthWeb ä http://www.ghsl.nwu.edu/healthweb/

12. MEDLINE n produced by National Library of Med. n bibliographic database n published, peer-reviewed research n broad coverage of health care n can now search free using PubMed & Internet Grateful Med ä http://www.ncbi.nlm.nih.gov/PubMed/ ä http://igm.nlm.nih.gov

13. Some tips n plug ins - helper applications n saving (downloading) files - where? n loading images - on or off? n printing - how big is that page? n source/page code - to learn HTML n file/page information