Despite the incredible work done on the spreadsheet comparing social bookmarking services I am yet to find one that does everything that I use Delicious for (background here). One service I have been using, however, is Trunk.ly.
Once you’ve imported your existing bookmarks from Delicious Trunk.ly stores any new ones you bookmark on Delicious, keeping the backup up to date. In addition it can store any links you’ve shared on Twitter, Facebook, Google Reader and any RSS feed.
It is essentially a search engine for links you may have shared at some point – but its technical limitations stop it from being much more. For example, there do not appear to be any RSS feeds for tags*, and there is no facility to combine tags to find items that are, for example, tagged with ‘privacy’ and ‘tools’. (It would also be nice if it tagged links shared on Twitter with any hashtags in the tweet)
That said if, like me, you want to continue using Delicious but with an ongoing backup in case, Trunk.ly appears a sound choice. And it’s early days, so here’s hoping they add those features soon… *cough*.
*Planned apparently. See Trunk.ly in the comments below.