I got quite used to diigo and use it often. It is an extremely useful tool! However, since yesterday (March 23, 2010) I cannot add Sticky Notes anymore. Whenever I try to save one, I get a diigo server error. Highlighting still works in most of the cases. Is there some kind of limit of sticky notes a user can add? If so, I am willing to pay to get past that limit! Or is this some kind of temporary bug?