Delicious offers tons of value in terms of business intelligence. So things like crowdsourcing Internet trends, bookmarking everything you want on your terms, leveraging tag RSS feeds, enriching your blog content, and taking advantage of the hundreds of resources available, will all become second nature after regular use.
One advantage that Delicious has over other social bookmarking sites is a myriad of extra tools, which includes their official tool set and third-party applications built on their API. These extra goodies make it easy for you to come up with creative ways to maximize Delicious for your business needs.
Official tools worth testing are the "Bookmark this on Delicious" buttons to give your blog readers one-click means to save your posts, and the Delicious Application for Facebook, which is perfect for showcasing your bookmarking behaviors to your business friends and fans.
You're likely to find the best Delicious treats from third-party developers. For quick access to your Delicious account, try the Delicious Sidebar. Get Auto-Fill Delicious.com v5's Tag Field or AutoDelicious (they're Greasemonkey Scripts) to save time and future tag search headaches; it will automatically add appropriate tags for the saved URL. Google meet Delicious offers a handy way to view saved bookmarks as you search Google. You can find even more tools and resources here.