What is the best tool or platform that a big company can use to share presentations, etc. We are a company around the world with 28 countries?

Interesting question, I'm not sure what is the purpose of this question but I'll answer it as best as possible :) I have been contributing to Clarity since it started pretty much, at some point even helped with some feedback on some possible iterations and updates a few years ago. I love what Clarity offers which the way I see it is not about the calls or the question and answer but the opportunity for experts and those with questions to bridge the journey between that problem awareness to getting their problem solved - either by calling someone, getting an in-depth response written to them, or hiring them or their companies directly based on the knowledge provided through this platform. As a marketer, I see the journey as Awareness, Consideration, Decision - Clarity helps someone with a problem bridge that realization right onto the decision of fixing something. Quora, on the other hand, does offer some cool features such as requesting certain people to answer but their positioning is not targeting to build a community of 'experts' so the answers you get might not be worth the wait. Quora doesn't encourage you to schedule calls instead it monetizes off ads and partners. Clarity is meant specifically for businesses and startups - not random 'everything questions.' Quora is a place to gain and share knowledge. It's a platform to ask questions and connect with people who contribute unique insights and quality answers. vs. Make faster & better decisions to grow your business. Clarity is your lifeline that instantly connects you with battle-tested advice from entrepreneurs. One of the biggest of why I just love Clarity is because its part of a bigger community of entrepreneurs and business owners and experts who reach out to each other and are 'there' for each other whereas with clarity - is too generic and there is no community in place.

Yes. Try looking at Salesforce and its suite of cloud solutions like Chatter, Marketing Cloud, Services Cloud, and Sales Cloud. Let me know if there's something around the same I can help you out with.

There's no "best" answer here, but you can approach it a number of ways. For trendy/future-facing, an isomorphic JS stack (Redux, React, etc.) could be a good move. The architecture is scalable and — if no one on your team hacks around the implementation details — it's easy to maintain (and onboard new team members). You can also use WordPress as your CMS, but that can get weird when scaling, and isn't the most developer-friendly solution due to WP's wonky architecture. You can unfuck it somewhat using something like roots.io (Trellis/Bedrock), but at the end of the day it's still WP, and those quirks are part of the price you pay for the ease of starting up. Another option is to use WP as a CMS, but read the content from the REST API and generate sites with other front-end tech. I recently built some tools to generate static sites (for deployment in Amazon's S3/CloudFront) that pull the WP data as JSON and then generate static pages with my preferred front-end tools, leaving the weird PHP templating out of it entirely. To take a crack at a tl;dr: talk to your development team about how you want this to scale, and where you see it going in the future. If you don't have a development team that can make those calls, talk to a specialist to help lay out a roadmap. If you need help with this, I'd be happy to take a look at what you're planning and offer some insight into how it could be built to scale and grow painlessly (or at least as painlessly as possible). Send me a message and we can talk details. Good luck!

Have you considered licensing?

Seminars!!! You can use social media or even word of mouth telling everyone to bring a Plus one. There is no such thing as too much information.