When your building a landing page the details count, even down to the URL of the page.
The URL of the page should clearly describe what the user can expect to see when clicking on the link. It should be stated it in plain language and the more descriptive the better.
Some would avocate this should be done for SEO purposes. Another equally (if not more) important reason is to help the actual humans visiting the page. When sharing the link on Twitter, Facebook, blogs, etc it helps users to see what they are going to get before they click on the link.
Bad:
mysite.com/lp/landing_page.aspx?page=5456
Good:
mysite.com/lp/free_101_page_marketing_ebook
If your using Reachable your for your landing pages your all set. We build human readable URLs automatically based the the page title.