Power users and novices alike use Webnote to share, organize and search their bookmarks on their Macs
Pukka is a richly-featured client for Delicious, Pinboard, and compatible social bookmarking services.
a delicious & pinboard OS X app by Pine Point Software
Delibar is a full featured Delicious and Pinboard Mac client. Delibar focuses on giving Mac OS X users an easy and quick tool for searching, managing and sharing their bookmarks.
Cocoalicious is a del.icio.us client for Mac OS X. It acts as a desktop interface to your del.icio.us bookmarks