Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest qualit...

Prezi is the zooming presentation editor

Twitter is without a doubt the best way to share and discover what is happening right now.

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

Draw, share and collaborate on online diagrams. Easy web flow chart, network diagram, mockup, wireframe, UML diagrams like Class, Sequence, & data...

Diigo is a powerful research tool and a knowledge-sharing community

Yahoo! Groups offers free mailing lists, photo & file sharing, group calendars and more. Discuss hot topics, share interests, join online communit...

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections t...

Centralized collection of family history & genealogy message boards hosted by Ancestry.com. Forums include specialized topics such as surnames, lo...