If you want to move away from delicious to any other bookmarking service, then you may need to export your bookmarks and tags from it. Here’s the procedure to backup, that is, export all your delicious bookmarks.
Login to your delicious account. Click on the settings link on the top right corner. On the settings page, click on the link Export / Backup Bookmarks, under the Bookmarks head. Now select the desired options. You can also choose to backup only selected tags.
Finally, click on Export button to get all your delicious bookmarks in an HTML file which you can import on other bookmarking services.