or Adventures in Diigo-Land: not that much of adventure since I already had a Diigo account that I use some but less than Delicious, which is faster, especially with marklet plug-in. The speed bump was lost note with login information (geriatric hard drive melt down) and forgetting which email account I signed in from. I'd say try not to have systems problems right when starting a course or project, but that's not something we have control over. Too bad.
I should use Diigo more and have been inching up on it, a bit more each online workshop, class or MOOC that calls for it. Inching is my approach of choice for assimilating apps ~ minimizes frustration and keeps long term memory from going out on strike for unfair working condition. Turbo-techno-teachers might bear that in mind dealing with students new to the tech they themselves take for granted.
Diigo won't supplant or completely replace Delicious but don't doubt it will find its place in the Repertoire of Useful Performing Apps. This round I'll use the sharing tools more and maybe just maybe explore it for quick & easy blog content posting. With the gang of blogs I have, I'm always on the lookout for that.