There's a backlash against the social bookmarking one-click icon in your post-footer. Michael at Binary Bonsai calls it Digg-whoring. He cites WG, who note the overall ugliness of the buttons, and their similarity to the "add to your reader" buttons that can get messy (and were recently retired from Freshblog.) I would add that I used to have search links for individual post inbounds too, but they went the way of all things a while back, in the interests of streamlining the template.
I guess they're right. Del.icio.us users are going to bookmark your stuff if they like it, whether or not you have an icon... and I'm no more likely to get slashdotted with the icon than I was without it.... don't make me beg.... er... Let's just say that I got into this last June as an extension of the del.icio.us categories method, because I can't use bookmarklets, & so for that specific purpose the del.icio.us icon will probably stick around long after I've retired the newcomers.....
Filed in: delicious tags tagging blogtech
Checked that out, & you're right that it cleans up your template, but doesn't it just displace the icons to an intermediapt page?
It has its pros and cons.
It makes it so readers can select text and have it added to the notes field, or default to the first 255 characters .