When Steve Jobs died, so did flash. A month after Jobs died Apple announced they would be suspending all future development of their Flash for Mobile. But that doesn't mean that there won't be need to tell a story on a website and it doesn't mean the end of flash as we know it. So whatever your story making desires require of you, you'll still need to follow the basic principals of creating a storyboard.
Here's a few things you'll need to get started.
How Much Should you Charge?