I hate tagging. I use it sometimes to make sure that I won't miss important stuff, but tagging every single thing I bookmark? No way. The catch was that with delicious I HAD to, otherwise I would never find anything again. Needless to say, when I heard you didn't have to tag anything with Diigo because it caches the pages, and you can search the content instead, I was overjoyed.

The thing is, it doesn't work. If it wasn't for the imported tags from delicious, I wouldn't be able to find anything at all. For example, I bookmarked a page titled "FancyForm - Javascript checkbox replacement". I searched for 'fancy', 'form', javascript' and 'checkbox', and it didn't came up. What did came up were pages with those words as TAGS, but not content.

I read somewhere it's because when the engine is overwhelmed, it takes a while for it to catch up with the full content. I hope this is the case, because this is such a great service. It really is just a full-text search short of being perfect (and the advanced search link being a little more accessible).