I’ve been using FIlangy for a couple months now and I have to say I like it. Basically, you just install the toolbar in your browser and it indexes every site you go to (those that are public, not the private ones {it does this by having their servers access the page itself, not transmitting what you are looking at to the server, so any site that requires a login or registration doesn’t get indexed}), and you can also save any site to your “webmarks”, same as bookmarks basically. Whenever you search the web you can get 3 types of results, those from the web proper, from your web cache and those from your webmarks. They also do good stuff like cluster your search results as well. You’re probably wondering about privacy. Well, all they require is an email address for registration and login, and we all know those are pretty easy to come by. Here is their FAQ: Filangy Frequently Asked Questions

This guy has a good writeup of it as well: http://www.igniq.com/robs_blog/2005/02/filangy-beta-first-impressions.html.

I have some invites, so if you’d like to try it out, let me know.