I’m a huge fan of the Delicious bookmark service - mostly because it’s important for my pointer-based brain to be able to store content to read for later at work, at home, etc. Delicious is simple, and they’ve got some basic bookmarking technology that works with the browsers I use (both at home and at work).
AVOS has purchased delicious from Yahoo, which is good because it may breathe new life into the service. In order for them to be able to move your data, you should log in to Delicious and agree to the new Terms of Service from AVOS - that will allow them to migrate your data once the hand-off happens.
That said - I would also log in to the new AVOS site when the migration happens to make sure any privacy concerns you have are taken care of.
A friendly reminder to all my friends out there in the community that may still use the service. Click the link for this post to see my current bookmarks in case you’re interested.