Jibz: thanks, but my focus on these things isn't so much organization/to-do lists as strage and retrieval of information. That's one reason I haven't bothered much with Keynote. It doesn't have Boolean search logic, as far as I can see. I've seen the suggestion (maybe here, but more likely TalkAboutShareware) that one could get round this by using freeware Treepad Lite to maintain files, and use also freeware and freestanding Treepad reader, which has better search features, for searching. But, I haven't tried this.