UPDATE: Actually Yahoo is not really going to shut it down, just trying to sell it to another company, but all the warnings about hosting in the cloud are still valid.
I just read that Yahoo is shutting down Delicious. Despite the fact that now I have to find another way to keep all my bookmarks online this raises another interest question:
Do you trust the Cloud?
Everyday there are services that are shut down, like it happened with Geocities and is probably going to happen with Google Wave, but when it happens with popular services the disappointment is even higher.