Every webinar must have a purpose.
You can do a webinar to get more visitors to your website and eventually expand your list of subscribers.
You can use webinars to run Q & A sessions with your clients; to introduce a new product or service or to interview an expert in your niche.

These are all can be called content creating webinars as opposed to selling webinars where we promote or sell something.

How long should a webinar last for? In this video I am sharing the best practices.