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In my early days of Living in the Clouds, I was using Delicious as my cloud based bookmarking tool. It was my favorite Web 2.0 era tool. I loved it so much that I refused to look at any other social bookmarking apps. When I started blogging here at Cloud Avenue, Zoli recommended us to use another bookmarking site called Diigo for our research purposes. I agreed to use this app very reluctantly and I never looked back since then. Diigo is not just a social bookmarking site but it is also a very good research tool including options to highlight, annotate, comment, share, etc.. This tool has changed the way I do research on the web with its powerful set of features. In fact, I have stopped using Delicious completely. This is much more powerful than Delicious in my quest to organize my information in the clouds.

Pros: Highlight and Annotation. This is a powerful feature for anyone who is using Diigo for research purposes. The best part of this is the finer privacy control for annotation. One can keep it private or share with a group or make it public. Ability to create groups to share with others interested in a particular area or lists to organize information better for yourself. Ability to send to friends who are not members of Diigo through email. Ability to expand/collapse highlights and annotations in your Diigo bookmarks page. Powerful toolbar Ability to extract all the annotation in a particular page. Comes handy while researching on any topic. Here, the network effects can make this feature more powerful.

Cons: Lack of browser button that could hide/unhide the Diigo toolbar similar to Stumbleupon toolbar. This will come handy for those with smaller monitors/netbooks to use the space occupied by the toolbar to see the webpage.