| Tampa PC Users Group (That’s us) | http://www.tpcug.org/ |
| New York Public Library Digital Gallery | http://digitalgallery.nypl.org/ |
| Florida Yards & Neighborhoods | http://cfyn.ifas.ufl.edu/water.html |
| Skype - Free Internet telephony | http://skype.com/ |
| MedlinePlus Health Information | http://www.nlm.nih.gov/medlineplus/ |
| GUIdebook Graphical User Interfaces | http://www.aci.com.pl/mwichary/guidebook/index |
| History of the graphical user interface | http://en.wikipedia.org/wiki/History_of_the_GUI |