I like Diigo and use it regularly. But the iPad/iPhone app is outdated at best. The reviews are very bad and it does not allow me to sign in using my Google account(I use it on web to sign in).

It would be great to see properly done Diggo apps on mobile. I like Diigo more and Highlighting is the killer feature but still I tend to use Evernote more because they have loads of integrations and apps. Penultimate, Skitch and Evernote itself, all apps are properly and timely updated to include new features. Diigo app is not even Retina (iPad at least!)

I'd love to give you guys my money but right now, I have better(and sometimes free) alternatives available for everything except highlighting.

I love Diigo because of multi-tagging and search by multi-tags BUT I wish it had a more visually appealing look (blue on white background is nice but the writing gets a bit lost and it takes me longer to actually read through the page) and I'd love it even more if it had a homepage like Aboogy or Skloog or like Symbaloo, where you can have all the most important bookmarks at your fingertip and marked by icons that are easy to find (e.g. email, weather, news, stock exchange, social networks, flight search, currency exchange... that's based on the "utlilites" I use the most on a daily basis)

Could we please get the ability to search by tag -exclusion-? Currently, tag search is -inclusive- only, where we add more tags to our search to narrow down the results.

It would be utmost useful if we could also have the ability to exclude respective tags from search results list.

For example, if I search for the tag "family", I would be shown similarly-tagged tags of "brother", "sister", "mother", "father". I could then add the tag "sister" to get to the result I wanted.

But what if I couldn't remember the specific narrowing tag(s), like "sister", in this example? However, I could remember that the result definitely wouldn't be tagged with "brother" or "father". So with this new feature, I would then exclude "brother"/"father" tags from the results, thereby leaving me with the effective search results as if I'd done an inclusive tag search of "family" + "mother" + "sister".

While there are two effective approaches to go about this same example search, the option of having both approaches is most helpful in cases where there are a lot of tags, and the result you're looking for is tagged with more tags than you can remember -- which would make a tag-exclusive search more effective for honing in on the result(s) one is looking for.

Currently, we can add more tags onto our original search.