Use this link to learn about the revised USDA Food Pyramid, calculate your caloric needs, and plan a healthy diet:
http://www.mypyramid.gov/

Get tips and advice on how to get a variety of fruits and vegetables in your diet at:
http://www.5aday.com/

Use this tool to convert weights and measurements for the kitchen:
http://www.gourmetsleuth.com/gram_calc.htm