Trulia did something very similar to Bills.com with their landing page. It starts with a simple form asking for "an address" (which sounds less creepy than "your address," although that's what they mean). Below this simple form field is a bright orange button that contrasts well with the hero image behind the form, and emphasizes that the estimate will be personalized to your home.
Bottom line, there’s a few things I’d like to highlight for the pages available. ClickFunnels only lets you access certain pages and funnels based on your account level ($97+ gets you all the access) where LeadPages lets you access everything from $37. Having said that, as seen in the pricing table, split tests are not included in a LeadPages basic plan.
Prospecting and marketing are all the things you do to get people into the first of your sales funnel stages. Note that stages are broken into two or more steps wherever possible. A demo could be called a single stage, but in real life it involves a lot of things: contacting the customer, sending reminders, doing the demo, and then following up. Whatever your own sales stages look like, the support you need in managing them will be the same.