Feature request: Well its more of a general request. I have moved from Delicious to Diigo because delicious largely stopped working for me.
The Delicious bookmark sidebar offered a MUCH superior experience due to it sychronising with the local machine. I would love to see some of the Delicious features replicated: 1 spilt bar into results:tags and results:bookmarks when searching 1 allow multi-tag filtering (filter by tag a, drill-down by tag b) 2 Cursor snap to sidebar search bar as soon as it opens (ctrl+b) 3 right-click on a bookmark to reveal options
Another idea: fall-back when other apps are using crtl+b (eg making items bold on Google Docs)