Thanks for the push (and for checking out my humble blog). I've been meaning to give your baby a go-around for a while now. And I must say, it's very nicely done.

Let's take it for granted that I like the things that make Furl unique: archiving of pages, full-text search, selective privacy of links, easy-to-use toolbar (even as over-toolbarred as I am!). In the interest of either making Furl better or becoming a better Furl user, let me point out some things I like about del.icio.us (hereafter dlish) that appeared (to my novice eye) to be different/missing in furl.

First, one of my favorite things about dlish is the ability to apply multiple categories to a link.* Now I see that I can add keywords to a archived page, but there doesn't appear to be a way to browse an index of those keywords as you can with the topics. Adding that kind of functionality would appeal to me. I also like that dlish shows me the number of times I've used each of my topics. Perhaps you have included a way to view that info, but not in an obvious way. If not, I suggest adding it, since it allows users to analyze their classification schemes for maximum utility.

But I think the central difference between the two managers is the relative emphasis on social bookmarking. While both offer it, dlish makes it the priority, presenting the collective bookmarking of its users as the primary content. Furl comes off as more of a power user tool whereas dlish feels something like a community blog, much like Metafilter without the wit and sarcasm. This is in no way a criticism, just an impression.

Mike, I think you have a great thing going. I would be happy to discuss it further and hope you won't mind me posting these general impressions on Open Stacks, so that others can join the discussion and be encouraged to experiment on their own.

Might I also suggest you get a development blog going. I'd be interested in learning about ways you are moving furl forward. And if you do that, please share the feed URL!

Keep up the great work,
Greg