Business Forum
Business forum to develop a small business. Business planning, marketing and website marketing.
http://www.teneric.co.uk/forums

FreeAuctionScripts: Internet Business Owners Community Portal
A non-profit online community portal for Internet business owners, and auction sellers.
http://www.freeauctionscripts.com/community/

Business-Idea : New business ideas and opportunities
Allows users to post, discuss, and find new business ideas and new business opportunities in the threaded and moderated forum, as well as to meet potential business partners.
http://www.business-idea.com

Small Business Ideas Forum
A friendly forum environment where people can share small business ideas and knowledge, ask questions & find help and encourage one another.
http://www.smallbusinessbrief.com/forum/

Project Management Knowledge Base
Free portal for project planners and managers includes an events calendar, discussion forums and software and book reviews.
http://www.pmkb.com/

SalesPractice.com: Sales Training Forums
Online community focused on sales training, marketing and management.
http://www.salespractice.com

Bank of America Corporation: Small Business Forums
Join the small business forum at smallbusinessonlinecommunity.com and ask a question, weigh in on an issue, or share your experiences with other small business owners around the country.
http://smallbusinessonlinecommunity.bankofamerica.com/community/forum