I work with a unique situation where we have a site that gets tons of free traffic from internal free resources. We do make revenue from this traffic, but due to its nature, it has a high bounce rate. Data shows that once someone from this source does click a second page, they are engaged, so they either bounce or click multiple pages.
After testing various landing pages, I've determined that the best solution would be to create a landing page on a separate domain and hide it from the search engines (to prevent duplicate content and the appearance of link farming). The theory is that once they click through to the site, they will bounce at a lower rate and improve the stats of the website. The landing page would essentially filter out this bad traffic.
My question is, how sound is this theory? Will this cause any issues with Google or any other search engines?