Join Delicious

Open your web browser of choice (i.e. Firefox, Internet Explorer, etc.)
Click this link to go to the Delicious website
Click
Fill out all the required information
Click
On the next page install the Delicious browser buttons to make bookmarking sites easier. (Note: You may be asked to close your browser or click Run multiple times to complete the installation)
The last page of the registration will ask you if you would like to import your existing bookmarks. Be sure to do this if you want to tag any of the browser bookmarks that you already have.