A tagline to draw interest is a good suggestion! Will consider adding one.

The domain names are retrieved from expired domain lists published daily (various sources). I wrote a backend script to check domain name availability with a Whois lookup (runs every 2 hours for updates). At any given time, a random sampling of a larger domain set is available on the site for quick shuffling.

I would also give people the option to "mark" a domain to add it to a running list and/or the ability to go "back" in direction as well.

Great ideas also! Will add to the feature enhancements list.