Just my 2 cents:

When you go live, identify your client group (at first sight, it's agencies and freelancers)

- Create a seperate button for agencies and freelanciers Agencies, signup here, freelancers: signup here.

- Create different pricing to match the client group

- Create a "use-it now" script, eg. a editable-text that they can copy and copy paste it in a website. Give it a trial account (or beta).

- Sell to your target groups, i think you can do something with this, but you really need specific group targeting.

- Change the button: Get early feedback into the register texts and buttons: Register for free here (input: Name & Email) -> Button: Register

- Change some text: Collect feedback on your site... Try targetting web designers (who hate the overuse of mail for adjusting to the clients preference -> put this as a section on the front page). Example for a section: Optimize your website feedback (collect early client feedback)

It's not immediatly clear what it does, it summorizes the tools, not the goal itselve (eliminating email by a better workflow for receiving client feedback for example).

And last but not least, marketing marketing marketing :)