I little known feature of delicious are "shortcuts" (also known as "keyword"). Basically, you can make up a quick alias like "docs" for google docs, or "ymail" for yahoo mail, etc.
Your favorite sites are just a phrase away. :-)
Rick Schoonmaker commented
This is a must have feature and the biggest thing that I am missing from Diigo
I really liked the fact that I could easily type "delicious.com/userName/tag1+tag2". I think the diigo ways is "http://diigo.com/user/UserName/tag1 tag2" I would appreciate if this can me made:
1. Shorter - shorter URL to get to the user library
2. Cleaner - I think it was simpler to put a "+" between tags
I used the short URL to quickly share my shortcuts
Shaddy Neil Quilog commented
I use this often with Delicious to search quicker (keyword SEARCH-TERM).
Richard Blaney commented
This is the only thing im missing since switching to diigo, im still keeping delicious extension installed on firefox just for this feature
For me this was one the most used feature of delicious! A must have I think.
Jeremy Luce commented
This is actually one of the Delicious features I use most. Quite underrated...