EUROPEAN LEVEL
www.enterprise-europe-network.ec.europa.eu/index_en.htm
www.youngbusiness.net/leonardo/index.html
www.ebn.be/content/main.asp?PageID=231
EBN is the leading  European network gathering 160 Business and Innovation centres (B.I.C.s) and similar organisations such as incubators, innovation centres and entrepreneurship centres.
 
THEMATIC NETWORKS FOR SMALL LOCAL ENTERPRISES (USA and CANADA)
greenenterprise.net/web/
Our members are locally-owned businesses and consumers in the Toronto region. Through networking events and workshops with eco-smart entrepreneurs, we help independent businesses and customers to become greener and to think local first. We encourage consumers and businesses to buy and produce goods and services based on their shared commitment to these "living economy" principles— strong communities, a healthy environment, providing meaningful employment, buying local first and fair trade.

www.livingeconomies.org/ (WICHTIG!!)
BALLE is an international alliance of independently operated local business networks dedicated to building Local Living Economies. It has also a renewable energy network.
BALLE is the world’s fastest growing network of sustainable businesses. Since 2001, BALLE has helped spawn close to 60 BALLE networks representing more than 15,000 entrepreneurs across the US and Canada.
Living Economies start with entrepreneurs coming together to form a local network. The network's main focus might be a single issue, such as independent retail (a Local First campaign) or local food. Or, it might be bigger, such as transforming an entire regional economy. Each network evolves according to the needs, contours, and conditions of the local community with the ultimate goal of building a Living Economy. BALLE meets each network where it is, connects it with other networks, and, if the network chooses, provides opportunities for growth, learning, and greater impact. 

ww.silcnetwork.com
Social Impact Leadership Coalition (SILC) is a “network of networks” comprised of fourteen national non-profit organizations that focus on socially responsible business (people, profit and planet) and issues of economic justice.

VERY INTERESTING LIST OF NETWORKS
www.netimpact.org
Net Impact is an international nonprofit organization whose mission is to make a positive impact on society by growing and strengthening a community of leaders who use business to improve the world. We offer a portfolio of programs to educate, equip, and inspire more than 10,000 members to make a tangible difference in their universities, organizations, and communities. Interesting is the Career center and Learning Center.

www.businesscollaborative.com/
The Business Collaborative is a fresh look at old ways of doing business. It is a business model for the 21st century that challenges businesses to be more competitive by being more collaborative. It is a catalyst for building business relationships that strengthen the economic fabric of the communities in which we live. Good practical examples  

www.bsr.org/
BSR helps more than 250 member companies develop sustainable business strategies and operations through consulting, research and convening. With six offices in Asia, Europe and North America, BSR leverages its expertise in environment, human rights, economic development, and transparency and accountability to guide global companies toward creating a just and sustainable world. Interesting: report 2007 to download

www.ceres.org
Ceres (pronounced “series”) is a national network of investors, environmental organizations and other public interest groups working with companies and investors to address sustainability challenges such as global climate change. Mission: Integrating sustainability into capital markets for the health of the planet and its people.

www.coopamerica.org/about/
Co-op America is a not-for-profit membership organization founded in 1982.Our mission is to harness economic power—the strength of consumers, investors, businesses, and the marketplace—to create a socially just and environmentally sustainable society. Co-op America's Green Business Network™ is the oldest, largest, and most diverse network of socially and environmentally responsible businesses in America.We link green businesses to the growing marketplace of values-driven consumers. We provide services and connections that benefit both emerging and expanding green businesses.Our Membership: Members of Co-op America's Green Business Network™ include today's most vibrant and influential social entrepreneurs.
LOOK “BENEFIT FOR MEMBERS” and the Green Business Lounge Social Networking Site: This web-based social networking site is a members-only service that is designed to help you as a member of Co-op America's Green Business Network™, bringing you exciting connections and new business opportunities. The members on the Green Business Lounge are leaders of a variety of types of sizes of green businesses. LOOK ALSO: Member Screening Process Criteria

www.investorscircle.net/
Investors' Circle is a network of over 200 angel investors, professional venture capitalists, foundations, family offices and others who are using private capital to promote the transition to a sustainable economy. Since 1992, Investors' Circle has facilitated the flow of over $130 million into 200 companies and small funds addressing social and environmental issues.

ww.environmentalentrepreneurs.org
Environmental Entrepreneurs (E2) is the independent business voice for the environment. E2 is a national community of individual business leaders who advocate for good environmental policy while building economic prosperity. Working with NRDC, E2 takes a reasoned, economically sound approach to environmental issues by relying on fact-based policy expertise. As the independent business voice in the debate, E2 is effective and delivers results at both the state and national levels through its bipartisan efforts.Good website, section about “How we work” and reports to download

www.svn.org/index.cfm?fuseaction=page.viewPage&pageid=482
Social Venture Network (SVN) transforms the way the world does business by leveraging its members' collective strengths of leadership, knowledge and enterprise for a more just and sustainable economy.Founded in 1987 by Josh Mailman and Wayne Silby, Social Venture Network (SVN) is a nonprofit network committed to building a just and sustainable world through business. 

www.wirral.gov.uk/LGCL/100002/200013/347/content_0000245.html
Wirral Investment Network (WIN) is a partnership of local authority and private enterprise. There are now more than 50 members including all the major private and public sector organisations in the area. It aims to improve Wirral as a place to work, live and relax by linking key staff from public and private sector business in an action group to secure the commercial future of Wirral through the vigorous pursuit of investment and, in turn, jobs.

ww.green-heroes.org
The place to share information, ideas and experience on sustainable innovation. 
  
KNOWLEDGE NETWORKS
www.eukn.org/eukn
www.eifn.ipacv.ro/ (financial network)
www.southeastknp.co.uk/Networks/ENERGY : the network ENERGISE it´s a knowledge network launched by www.envirobusiness.co.uk/
 
SIMILAR TO NENA
www.europe-innova.org/index.jsp?type=page&previousContentId=9172&cid=5110&lg=EN

5minuteswithmolly.wordpress.com/2008/07/07/get-seen-in-austin-solar-energy-entrepreneur-network-2/

www.green-alliance.org.uk/grea1.aspx?id=622
Green Alliance is facilitating high-level advocacy of the policies needed to promote micro-generation.We are drawing on the expertise of the organisations and individuals represented in the network, to ensure that the case is heard for micro-generation.This work includes meetings with ministers, officials and advisers; seminars and other events; joint letters; and responses to consultations.

www.envirobusiness.co.uk/
EnviroBusiness is a specialist company helping businesses involved with environmental technology & services to secure a greater share of the growing global market for solutions to environmental change. Since its formation in 2005, EnviroBusiness has created a major network of environmental technologies and services companies. We assist our network members by helping them access new funding, find new customers and business partners.  
 
SEARCH ENGINES
www.greenmaven.com/
Green Maven is your gateway to the Green Web. We're a search engine that focuses on green, conscious, and sustainable websites. 

VARIOUS
www.morethanmoney.org/
More Than Money is a national nonprofit education organization serving people who want to measure their success not by the money they are making but by the good they are doing.

www.naturalstep.org/

ALSO RESEARCH AND E_LEARNING