Why a post called There Is No Way In Hell That A Man Can Please A Woman? Ages ago, I remember reading a post by Darren Rowse about how resurrecting old posts could be a good thing. They buried it in the archives, so it took me a while to find it. The post was called The Why And How Of Repeating Content On Your Blog. He wrote it in response to a question from one of his readers. It’s a pretty good read, and I suggest you go on over and take a look at it.
One of the methods that Darren uses is to revisit an old post, update the information and then change the date so that it appears as a new post. Which is all well and good, but I much prefer to find a post from one of my other blogs and then migrate it another blog of my choice, one of the many benefits of having multiple blogs. In this way, I can see what sort of effect it would have on a completely different audience.