This is crucial: don't be obnoxious. When I go to a site, and get besieged with popups, videos, and a thousand other things clutching at my attention, I leave

This is crucial: don't be obnoxious. When I go to a site, and get besieged with popups, videos, and a thousand other things clutching at my attention, I leave and never return. Keep the site clean, accessible, and considerate to your readers. Don't let desperation get in the way of the content.