ActiveDEMAND has outstanding landing pages. If you are looking to do some Conversion Rate Optimization, consider split testing. Split testing is easy with ActiveDEMAND.
Create a landing page (Assets->Published Pages). This will be your first spit candidate. learn more
Clone your landing page (Assets->Published Pages). This page will be your split candidate.
Create a split test (Assets->Published Pages->[Split Tests]
Choose your two landing pages, and name the split test. From now on, no matter which URL of the two pages is hit, AD will serve the two pages in alternating fashion. Track your progress on the split test page