Remember that a font might look different on your computer than it will on your visitor's computer. Macs and PCs have different names for the same fonts. Try to list more than one font face in your font tag, including both the Mac and Windows version. Times is the Mac version of Times New Roman. Bear in mind that many people may have trouble reading your text.
People work in bad lighting conditions, have impaired vision, or poor monitors.
Keep your main font very simple and make sure that the color is easy to read against your background. They can take away from your website. Also, don t put white text on a black background if you want people to be able to print your web page. Sometimes it will not print correctly. Almost every article written about web design emphasizes this.