I haven’t given any ‘blogging’ advice in a long time. And whom and I to give it?
But I have noticed one little thing that can help get your posts a little edge. Maybe it’s this increasingly ‘real-time’ World, or maybe they’ve always done it, but Google is so much constantly crawling, that when your content changes, even on an older post, the Google ‘bot’ almost immediately notices and comes running to check it out. So in this ‘timely’ World, it could get you a spot on the top or at least on the front page of results, for your particular topic. In other words, one gets the since that ‘timeliness’ is increasingly an ingredient in the secret ‘sauce’ of Page Rank.
Also I’ve noticed another benefit: It sort of gives you a sense of continuum and wholeness to your ideas if you’re keeping them alive in this way. In other words, if you add to them when some new material arises, simultaneously your subsconscious goes to work, ‘effortlessly’ bringing you some new creativity and synthesizing your main ideas, perhaps by doing it’s own ‘crawling’ in the otherwise overlooked areas of your mind.