So I have this blog that I'd had some interesting ideas for, a few years ago, and since I absolutely LOVE the domain name, I've kept it around. I started working on the, but had no actual direction (or focus) in which to take it. I ran my own SEO campaigns, and got it ranking in a few places, but then lost interest in it (though I still love the domain). Recently, I've decided to take it in a slightly new direction (and I'm wanting to basically start fresh, with the exception of my logo/business cards). I will KINDA stay in the same ballpark, so to speak, but I wouldn't mind completely deleting all my previous blogposts. My concern is with what would happen with all the link-building I've done, if they now start pointing to posts that no longer exist. Would an invalid URL wildcard redirect to the homepage help with not getting beaten up too badly by the SERPs? Whaddya guys and gals think?