* Load each website in a frame with a 50px bar at the top or bottom with your branding and more options. This is where you'll monetize. I know you're focused on usability right now, but if it goes viral you need it to pay you or it will go away.
* Don't bother with premium features until you have a working viral loop providing consistent growth.
Thank you! I'm definitely thinking about how to improve the app, added sharing options for fb and twitter, and now also switched over to javascript/iframes (which has the advantage of a 100% accurate display of the website and not needing to reload the whole site for a preview).
* Add a way to delete previews you've made.
* Add more viral hooks. FB wall post, email, etc.
* Do the same concept but with javascript.
* Load each website in a frame with a 50px bar at the top or bottom with your branding and more options. This is where you'll monetize. I know you're focused on usability right now, but if it goes viral you need it to pay you or it will go away.
* Don't bother with premium features until you have a working viral loop providing consistent growth.
Best of luck!!