I actually built a service like this for internal use a couple of years ago. I worked at an agency, we were responsible for the web sites of companies of which

I actually built a service like this for internal use a couple of years ago. I worked at an agency, we were responsible for the web sites of companies of which many were listed at various exchanges. This included handling the publication of press releases. The exchange rules are pretty strict, if a press release is leaked early, you are in a world of hurt. If you publish it too late, you are in a world of hurt. The fines could be draconian in nature. This led to inane publication work flows, where literally nothing would be allowed to touch anything that could somehow be connected to the internet. The press releases are handed to us in encrypted form. The publication is prepared one day in advance, and at 5am a couple of poor souls have to show up at the office and publish them before the exchange opens, they also have to trigger newsletters. They also had to take print screens of every change they made and file them in a folder. Because our clients could fine us hundreds of thousands of dollars for mistakes, among other things, I created an automated screen shot service that regularly takes screen shots of certain areas on the client web pages and also downloads the associated html source. External guys audited the application. This is basically just a precaution so that no client can claim we somehow accidentally leaked unwanted information. It's also there to prove that we managed to publish everything in time. Now of course, once you have something like this in place, someone has to monitor it to make sure it works all the time :) lol...