Open Business - platform to share and develop innovate Open Business ideas - entrepreneurial ideas which are built around openness, free services and free access
Oriented - global network of international professionals interested in Asian businesses and cultures
WikiEducator - collaborative community for planning education projects linked with the development of free content, as well open education resources projects
Expert Communities
Citeulike - academics' social network around the academic papers they're reading
Catalyze - resource for UI and UX professionals and those designing business systems
Intuit Accountants - Intuit's resource for accounting and Quickbooks practitioners
Myragan.com - pr community - "where communicators meet"
Xigi.net - "the creative commons where people who want to be involved or learn more about investing for good will hopefully come together to house their collective market intelligence and thinking"
Hubpages Requests - can request an answer from person with specific expertise
Linkedin Q & A - can ask your network questions -- largely marketing folks, recruiters, and consultants who answer, big picture business strategy questions often get thoughtful answers
Facebook Group: Online Community Roundtable - started by Bill Johnston of Forum One - "A group for those working with online communities in the commercial and non-profit spaces. Specificially, a group for those charged with community strategy and management."