PILP is an acronym for post inquiry landing page.
It is a carefully designed web page that someone is redirected to AFTER filling out and submitting an inquiry form at your website.
Post inquiry landing pages are an Internet marketing best practice and improve conversion (i.e. sales).
Why just say “thank you” to someone for making an inquiry when you can ENGAGE THEM MORE EFFECTIVELY and get your sales process off to a better start?
You can see a post-inquiry-landing-page in action, including the combined use of an auto-responder follow-up, at http://trypilp.com