Group items matching

in title, tags, annotations or url

This annotation feature is particularly powerful when used in conjunction with Diigo’s social features. Diigo allows you to create groups which can be public, private or semi-private, allowing you to collaborate on research through the use of links and annotation. Diigo also allows you to attach notes and comments that are visible only to the group, which is an extremely useful feature when sharing the link both publicly, as well as in a group context.

In addition to collaboration, Diigo’s social side is excellent for content discovery. The service can provide recommended bookmarks from other members based off of the links you have saved in the past, as well as recommending other users whose bookmarking habits seem to match yours. Diigo takes the “social” in social bookmarking very seriously, and provides very effective tools for finding friends on the service, as well as finding new people who have interests similar to your own. Friending another user doesn’t mean just making them a contact, it enables you to generate buddy lists, allowing you to organize sharing of bookmarks with friends, as well as providing a messaging system. Whereas in many other bookmarking services the sharing and social features seem to occur more as a byproduct of the sharing process, Diigo puts those social networking features front and center. However, Diigo’s interface is very content focused as well, making it clear that this isn’t a social network as much as it is a social tool.

The Diigolet is a surprisingly powerful bookmarklet, revealing sticky notes and annotations, as well as providing all the basic functionality a user needs. However, even with my hatred of adding additional rows to my browser window, the Diigo toolbar has won me over and become my tool of choice to interact with the service. Both tools will provide tag suggestions and assist with group functions, as well as the ability to send the link via email, however the toolbar goes even further. When using the toolbar, you also have the option of cross-posting your links to other bookmarking services, or even Twitter if you require. You can save simultaneously to Diigo, Delicious, Magnolia and Simpy, as well as to your own browser’s local bookmarks. Bookmarking to other services seems to work well, and saving to local bookmarks is a particularly awesome experience when using one of the latest betas of Firefox, which will attempt to auto-complete based on both history and bookmarks. It even correctly applies tags in the Firefox Places storage system, which is great but makes me wonder why the toolbar bothers to also build a hierarchal folder system inside Firefox as well, as the tags do that job already.

Another powerful feature that the toolbar adds is the Diigo sidebar:

the Diigo sidebar allows me to search and browse both my bookmarks and the bookmarks my friends have posted. In addition it allows me to get current information about the page I am viewing via the “This URL” tab. I can access public bookmarks and annotations, and lists of Diigo users who like the site. Diigo also can provide quick metrics about a site that I am visiting via the main toolbar. Using the “About This URL” menu option will provide a overall popularity score for the site, including a breakdown of the number of links to the site from Diigo, as well as from Google, Delicious, Yahoo myweb, Bloglines, Technorati, and Digg. Diigo also provides a calculation of the site’s Google PageRank, which is a really awesome bonus feature that I just discovered today.

As I have browsed through the user forums, this seems to be a common practice for the people behind Diigo to actively engage with their users for ideas, and respond constructively to critiques.

Diigo is really head and shoulders above the majority of competing social bookmarking services in terms of features, and the site itself is certainly more responsive than my beloved Magnolia, which is a wonderful service in itself, but runs slow as molasses.