From the website:
This site was developed by House Republicans as part of an official effort to increase the dialogue between Americans and their Congress. Here, Americans are provided a new platform to share their priorities and ideas for a national policy agenda. As Republicans, we are committed to our principles of limited, more accountable government; economic freedom; lower taxes; fiscal responsibility; protecting life, American values, and the Constitution; and providing for strong national security. This is an open forum, however, where all Americans are welcome to respectfully offer their opinions, regardless of party affiliation and whether we endorse them or not. It is our hope the active engagement of the American people will produce a robust debate that will aid in the construction of a new American agenda.
The site runs on Microsoft TownHall.