Once you have invested in resources, subject experts, promoting and hosting the webinar, it is the time to increase its impact over your target audience. A high quality webinar recording is the best way to generate a high return on investment for a webinar.
Once you have recognized these leads, nurture them with follow up through various modes like emails, phone calls, e-newsletters, postal mails, etc.
It is really difficult to get an audience to be a part of your webinar. You always need to look for a topic from your niche that is trending to be able to capture the attention of a large audience. Do some research and look for customer problems. Be relevant and informative with your webinar topic to encourage more people to attend your webinar.