Diigo defines itself as Social Annotation:
the best way to collect, share and interact on online information from anywhere
Diigo provides a basic toolbar from which all features are accessed.
Clicking on the Diigo button immediately opens up a bookmarking window. Having such quick access is very handy. The bookmarking window offers all the basics: url, title, Tags, Public/Private (public means your bookmark is visible by others), Unread (bookmark something and come back later to read more), Add elsewhere (Diigo allows integration with other bookmarking services). Additionally, Diigo displays existing comments, and lets you add your own comments.
The bookmarking service integration can be improved. Diigo doesn’t automatically login to the service. A popup login screen is provided for each service selected. This is laborious. There needs to be automatic integration so it seems seamless. Current integration is available with del.icio.us, blinklist, rawsugar, netvouz, shadows, furl, simply, spurl and yahoo.
The comments is where Diigo begins to diverge from other services. Comments are public and visible by all Diigo users. The purpose of comments is to leave short thoughts about a site that will provide useful to other users. Comments are view when using Diigo to bookmark a page. A commenter on the Yahoo page
wisely noted:
Diigo really needs a function to thumb up/thumb down the comments for pages. This will get spammy, really, really quick.
This is true and needs to be addressed by Diigo.
