I love the concept of social bookmarking sites like del.icio.us and Shadows. When we found Safarilicious I immediately used it to upload all 1050 of my bookmarks to del.icio.us, and I use it to help organize bookmarks for all sorts of projects I'm working on with friends.
My one complaint about these services is that, aside from Flock "getting it" and actually building support for del.icio.us (and Shadows) right into their browser, social bookmarking feels very one-way in its interactivity: there hasn't been any way to access them as easily as your favorite browser's bookmarks menu (and no, Cocoalicious doesn't quite get there). Further, the problem is compounded if you're like me and you either want or have to work in more than one browser.
Fortunately, I just found the utility that solves these problems and brings all your socializing bookmarks back home to your desktop: Delibar. Fitting into the "do one thing, and do it well" category that we at TUAW love so much, Delibar (as you can see) is a free menubar app that serves as a "universal bookmarks menu" for all your del.icio.us bookmarks, sorted into folders by the tags you've assigned. This, my friends, is exactly what I've been looking for.
To the del.icio.us crew, if you're listening: you need to help this guy out in one way or another. If I may be so bold: you guys should have offered something like this the day that you flipped the switch on your services. To the developer of Delibar: thank you! Finally, to you TUAW readers: I highly recommend you check out this most useful of utilities, and I urge you to donate if you wind up finding it even half as useful as I have.