You can provide full color photos, Longer stories, more in depth reporting, and you can publish faster. Newspapers have to get over copyright. I can click and save as, rip the text and file your name off, replace with my own and have 15 seconds of fame right up to the point that I get caught. There are too many over lapping sites and folks that communicate to get away with plagerism and theft for very long. Besides I can link to you faster than I can cut, paste and reformat.
Online newspapers have their revenue model totally backwards.
They can charge for News. You know, News, stuff happening right now. Charging for old news is incredibly moronic. You have already have it, and the cost is defrayed with a subscription. One of the other things that can be done with a website is you can determine what folks are reading and you can change your reporting to reflect that.