Delibar includes several intelligent features, such as network list refresh time - so that you don’t get bogged down by the constant updates of bookmarks and growl support, which displays a small growl message when a new bookmarks is added to your network or by a friend in real time as well as capability to share bookmarks via. twitter, facebook etc. The app also extensively supports applications like NetNewsWire, Marsedit, twitterrific, yojimbo etc. allowing you to do even more with your bookmarks.
In fact Delibar provides so many useful features that using the web interface of delicious becomes a moot point. The bookmarklet feature is also included with the application so adding bookmarks is never a pain. Almost all features that are provided on the bookmarking page of the delicious web application are contained within the app itself. The free version of the app only allows searching and accessing your bookmarks, but the paid Pro version brings the application to full speed with bookmarks management, discovery as well as sharing.