Diigo for highlighting and annotating webpages

I want to call this ‘dingo’, the Australian answer to the fox, except a bit more doglike. Diigo lets you highlight, sticky-note, tag and of course bookmark webpages. I imported bookmarks from FireFox. It encompasses websites that I’ve given a thumbs-up in StumbleUpon (as well as ‘regular’ bookmarks), including ‘StumbleUpon’ and whatever tags were applied in SU as tags. You can add more tags.

I’ve only used this for a bit and I am finding it fun. They seem to have thought of a lot of eventualities. Naturally Diigo has the social aspect of sharing bookmarks, but I am happy not to share at this stage.  Perhaps if I had friends who were collaborating, but honestly, the random folk of Diigo can do their own work for now. Mashable highlights Diigo and other enticing ‘back to school’ web apps.