I have never been able to get RSS to work for me - I'd always subscribe to a bunch of feeds, then they'd pile up into hundreds of unread posts, and then I'd just go numb to it and end up visiting the site itself like I did before.

But now, Twitter has filled this hole for me - most every site or writer of significance has a Twitter feed, and it's easy to follow them. I don't feel obligated to read down this huge stack of accumulated posts, so there aren't any mental barriers to use it. In addition, you read the content on the site itself, in the format that it was meant for (or you add it to Instapaper). Twitter is sorta like RSS for normal humans.