Jason Calacanis has posted some thoughts on what makes a good blog. Jeff Jarvis adds to it. But both point out the importants of updates. If a blog isn't being updated, people loose interest. So while quality of the posts is important, quantity is more so. But that leads us to asking how often should a good blog be updated? Nothing less than daily for sure, and 3 posts at once in a day is not as good a one post in the morning, one in the afternoon, and one at night. I think the trick is that people want something new when they go to the site. But can there be too much? I think so. Jeff mentiones Instapundit as a great site because it's updated every few minutes and so he's checking it all the time. For me, it's too much. I read most blogs via RSS, then go to the site if I want to read more or a continued entry or something. With Instapundit, he posts so much, and his RSS feed only has SUPER cropped entries, that every hour when my RSS reader would update, he'd have 5 or six new posts, and it got frustrating being forced to go to the site every time to see what he's talking about. I finally gave up and unsubscribbed. So that's a case where I think posting worked against the site. Of course there's no magic combo, but it's something interesting none the less.