31st August 2013
I have been searching for a good alternative, but haven't found one which really satisfied me, despite all the hassle with AVOS (dead link).
I am now considering to enter, or at least regularly backing up my URL's directly here in WordPress, see collected-links. I now regularly export my bookmarks to file, so to not lose any data. This export file is then run through a Perl script named delicious. This output is then manually put to collected-links.
See my post Migrating from delicious.com to WordPress.
Addendum, 27-Dec-2014: Exporting bookmarks via Export Bookmarks (dead link) does not work, you get the message "502 Bad Gateway". As stated in their blog (dead link) at May-8, 2014, Delicious is now owned by a company named "Science". It looks like they want to scare off any users.
Added 22-Apr-2017: Company "Science" apparently has lost interest in del.icio.us, it is now owned by a company called DomainerSuite.