If you browse or read a lot on the web, we believe you will find Diigo indispensable. Diigo is two services in one -- it is a research and collaborative research tool on the one hand, and a knowledge-sharing community and social content site on the other.

via | tags: diigo annotation social bookmarking extensions

Labels: cloud_computing, collaboration, community, networking, sharing, social_software, utilities, web_2.0