But if you’re part of the large group of people who think that nothing is really private on the Web and that everyone should see everything you do online, then you’re really going to like Facebook’s new privacy policy. It’s designed to get Facebook users to share as much as they can with as many people as they can–including people who aren’t on Facebook.

Facebook tries to explain the policy changes in a lengthy blog post here, and you can find a slideshow that accompanied a press conference the company just held here.

But that will make your eyes glaze over. Here’s the short version:

• Facebook is simplifying the privacy setting controls it offers users. So if you want your pals to see your keg stand from Saturday night, but don’t want your parents to be privy, you should be able to do that more effectively. The company is experimenting with different ways to present the controls.
• Facebook also wants to encourage people to use the “everyone” setting, which right now just means “every Facebook user.” But the company is going to eventually change that setting to mean “everyone on the Web”–meaning that Google (GOOG) users, marketers, whoever, will be able to find that stuff, too.
• Facebook wants to expand the amount of data its users share with the world because the company thinks that the more exposure data get, the more valuable the data become. But it is doing its best to tamp down complaints from users who accidentally end up exposing kid photos or bachelor party snapshots or whatever. Hence the new, improved privacy controls, which are being rolled out before “everyone” really means “everyone.”

I know, I know. That short version wasn’t that short. But you’re going to hear plenty more about this in the coming weeks. Consider this a first chapter.

Facebook CEO Mark Zuckerberg is going to turn the social network’s “stream” of user experiences and information into a revenue stream one way or another. And if that means allowing others to pan its waters for gold, then so be it.

And so, at an event in Palo Alto later today, Facebook will reportedly announce plans to open its stream to third-party developers, offering them the chance to build new services and applications outside the site that–with users’ permission–access the status updates, photos and videos uploaded by users. According to The Wall Street Journal, Facebook will provide that access via an open standard and it will do it for free.

An attractive proposition for developers: Access to a community with some 200 million members where the only real barrier to entry is a user’s privacy settings. In the months ahead, we’ll undoubtedly see this give rise to countless new services in much the same way Twitter has spawned an ecosystem of developers.

In doing this, Facebook is positioning itself as a social data clearinghouse feeding a myriad of other third-party services. More importantly, by doing so, the social-networking behemoth is also acknowledging that we’re not likely to conduct all our social interactions in a single network.

But it’s also betting that we may be willing to conduct many of them through one. And in the end, that’s just as good–especially if that social network is Facebook.

UPDATE:

Moments ago Facebook announced the Open Stream API which will allow third party developers to create new apps and services that will allow users to read an interact with Facebook member streams without having to actually visit Facebook.

“The stream is the flow of information on Facebook, which manifests itself on a user’s home page as the News Feed and on the user’s profile as the Wall,” Facebook explains in its developer Wiki. “It represents the content a user shares with friends in a real-time setting. Initially the stream content appeared only on Facebook, and now with the Open Stream API, developers can connect to their users’ streams and let their users read their streams wherever they want. This means that for the first time, you can build new user interfaces for the stream everywhere including Web, mobile, and desktop applications.”

A bold move. And one that will almost certainly let some of the steam out of Twitter’s pistons.