What are virtual event platforms and how do they help organizations host webinars, conferences, and online events effectively? How do different platforms compare in terms of features like live streaming, audience engagement, analytics, and integrations? Where are these platforms most commonly used, such as in corporate events, education, or marketing campaigns? When should someone choose a simple webinar tool versus a full virtual event platform? What are the key pros and cons of the top virtual event platforms that users should consider before selecting one?