Things We Like
I've been playing around with the Mozilla Labs project Weave. Weave is great for people like me who work on multiple computers at different times,and on different platforms. Now I can sync up my bookmarks, forms, passwords, etc. between my browsers (well, Firefox anyway) oin all the machines, and do it transparently and securely.
So far this has been working great. In the past I used Foxmarks, which was nice, but not as powerful as Weave (didn't sync as many things) and was fairly obtrusive - it would occasionally hijack all the cpu cycles (particularly on my netbook) as it as syncing up. Weave seems a lot less obtrusive, but takes a while to sync up.
I'm particularly intrigued by some of the single-sign-on features in Weave. It can automatically log you in to web sites (only if they're https: pages) and has a rudimentary implemention for OpenID, which I finally got to work after some playing around with the configuration (since i'm not using Mozilla's OpenID provider). This still seems a little wonky, but it's potentially a great thing to be able to make logins to web sites (and I use a lot of different web sites) more transparent.
Weave is still in beta, and may make your computer burn up in a big funeral pyre of disaster, but it has so far worked great for me.