For those looking to share/receive feedback on their SaaS projects and ideas, you should check out the Indie Hackers forum as well: https://www.indiehackers.com/forum

I launched it along with Indie Hackers a few months back on HN, and it's really grown since then! Lots of valuable discussions going on. I hope to do some AMAs soon with some famous/successful founders as well.

Yeah, indiehackers is a great place, especially given how hard working and transparent Courtland is with the project.

Saastr is wonderful too -- Jason Lemkin does a great job positioning things from the "how do you scale this to XX Million" perspective.

edit: oh, it's you, Courtland :)

Thank you for telling me about IndieHackers. Tons of people recommended it to me in the comments. Will definitely add it! Thanks!

For bootstrapers I can mention:

http://barnacl.es http://discuss.bootstrapped.fm

I'm working on http://hackertribe.io (launching soon). It will be a community for hackers and startup founders, like twitter/medium for HN community.

I second https://www.indiehackers.com/forum, it's great.

Also I want to add http://mastodon.social to the list. It's not directly intended for SaaS founders, but if you're reading this thread you will probably find it interesting.

I go on http://growthhackers.com and http://inbound.org. I think both have a SaaS section/category.

A few other solid online resources for SaaS founders (hard to really call these "online communities", though most do have vibrant community events tied to them): http://www.saastr.com https://hitenism.com http://www.enterprisesales.nyc http://www.heavybit.com/library https://www.enterpriseready.io

Not sure if we count as a "best" but just wanted to also add https://nugget.one for your consideration.

Seeing how the author posted this ostensibly-SaaS-pertinent post to HN, wouldn't HN be a candidate for this listicle?

For those who prefer Facebook to Slack, there is a closed Facebook group for SaaS Founders as well, small, but growing: http://SaaSMasters.com links to it.

Just wanted to say I really enjoy Alex Lee's newsletters (It's his site that the link goes to) - one of the best ones I have subscribed to (I am a SaaS co-founder).

Hey cyberferret! Thanks for the compliment! Much appreciated. A SaaSy Dispatches is going out today! :)

Alex! Thanks for the shout out for the SaaS Growth Hacks group (http://krall.in/sgh). Cheers mate!

You're very welcome Aaron! :D Thanks for making the group.