If you've never contacted your congress person then you might not realize how difficult our politicians have made it to get a hold of them. There are 535 members of the House and Senate all whom have some arcane contact form on their websites that obscure their direct email address. It's inconvenient for a single person to write a letter to all their elected representatives. But for organizations looking drive letter writing campaigns it's a nightmare. Individuals wont want to visit three separate sites as part of a push to pass or block a piece of legislation. And while there are services out there that can automate part of the work by routing messages to the right email addresses, they charge thousands of dollars a year for access to their tools and databases.