I had never heard of your site, so I went there. There was a way I could browse stuff and look around, check other's time lines or even a sample timeline with out creating an account, but it was not on the main menu - it was hard top-right on the screen and I did not see it at first. I have become averse to any and all sites that want my email address unless I am going to use the site actively.

So place the browse option at the top of the menu group and get more people.