[Porsche-O-Phile]

Do:

-Have plenty of relevant content and pertinent information
-Have good links and descriptions of your products & services
-Use an appealing color palette and sensible tab or frame-based layout
-Check your site on different browsers to make sure it still works
-Check your site at varying screen resolutions
-Use graphics sensibly to emphasize and reinforce the content (e.g. pictures of products).
-Keep it current and update it regularly

Don't:
-Use flash, animations, ding-dongs or (for God's sakes) those annoying "voice introductions" that some sites use.
-Use pop ups. Ever.
-Use scripting except sparingly and as necessary
-Bury contact information in sub-pages; put it where it makes sense in a frame or on the home page
-Make the mistake of thinking a web page is a "set it and forget it " affair - make sure someone keeps tabs on it and updates it occasionally.