Quite by chance, I came across one of the most impressive pieces of 'Web-ware' I've seen to date. It is a stand-alone, browser-based, javascript-run personal wiki, which you can put on a Website, or simply use on your own PC to collect recipes, book details, extracts from papers to help you prepare a paper, organize your Ph.D. thesis notes, or whatever. Naturally, I couldn't help using it and you'll see the result (which took about a day's work to construct) in inforesearchwiki. This is, in effect, a database of the abstracts to papers published in volume 12 of Information Research, with a subject index constructed from the 'tags' (or index terms as we old school information scientists prefer) associated with each abstract.
TiddlyWiki has an enthusiastic world-wide communitity, doing all kinds of things with it and producing a variety of style sheets and plug-ins. As more than one user has said, it is a 'mind-blowing' piece of gear.