Nonmetals

ChemcialElements.com : Non-Metals
Gives a brief description on the properties of Nonmetals, as well as links to the sites of each of the elements in that category.
http://www.chemicalelements.com/groups/nonmetals.html

Nonmetals
Includes a list of all the nonmetals and has links to their respective sites, their uses, and (with some) their reaction with air.
http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA4/LISTS/NONMETALS.HTM

Redox Reactions involving Nonmetals
Information on redox reactions involving nonmetals.
http://library.kcc.hawaii.edu/external/chemistry/nonmetals.html