What are the best online forums for entrepreneurs/startupers, people building an online business?

Fastlane millionaire by MJ DeMarco

People running real businesses rarely have the time to post on or read online forms. Quora is the closest you will get.

Great question, and I am sure the wisdom of Quora can point me to knew communities I don't know of yet. However, let me share a few of communities I follow/contribute to. Westartup - http://www.westartup.eu/ Westartup is an online community for entrepreneurs & investors. It allows you to create a page for your idea & gain feedback from seasoned entrepreneurs & investors. The community seems strongest for early phase startups, but is working hard on developing the service further to ensure value for startups in later phases. Reddit - Find the right subreddits I only started experimenting with Reddit recently. However, I am really growing found of the many amazing communities formed around subreddits. For entrepreneurs I recommend you to participate in the following subreddits: http://www.reddit.com/r/Entrepreneur,  http://www.reddit.com/r/EntrepreneurRideAlong, http://www.reddit.com/r/smallbusiness & http://www.reddit.com/r/startups. Each of the subreddits are full of helpful & knowledge people. The Quick MVP G+ Community - https://plus.google.com/communities/104685096347509477246 The Javelin guys are doing something interesting with their http://quickmvp.com/ product. Not only is it a very interesting approach to validating business ideas, they are also building a community of entrepreneurs around the service. Btw. you can find similar communities around many other services targeted entrepreneurs, and it is a good idea to join the communities around the services/products you use most (e.g. Wordpress, Shopify, Mailchimp...). Other tips: Facebook groups - Ask around to the next startup event & I am positive you will discover a "closed" Facebook community of entrepreneurs. Hashtag communities - Around the world startup ecosystems are adopting their own hashtags to connect with each other on Twitter & other social media. (Together with Quora I'm building a list of those here: ) HackerNews-like communities: Whether it is https://news.ycombinator.com/, http://growthhackers.com/, http://hub.onstartups.com/ or http://www.producthunt.com/, they all are very useful places for entrepreneurs. Discuss: http://discuss.bootstrapped.fm/, ...

The best one I've found so far is the Dynamite Circle, run by the TropicalMBA guys, Dan and Ian. The focus in this community is mostly smaller startups, lifestyle businesses and traveling entrepreneurs. The level of experience and expertise among the members is better than in any other online community I know of.