So we all know that we can only see people's photos, wall posts, and other information if you are their friend (depending on their privacy settings). There is also a setting in facebook where you can download all the information you've uploaded to facebook - images, wall posts, basically everything facebook knows about you. Now most people share tons of stuff on their facebook since they are attention whores and what not. They are also much more willing to share stuff that to say the least ought to be kept private such as inappropriate photos, e-mail address, phone numbers, addresses so on so forth. The reason they do this is because they think that only their friends are going to view this information. Here is the idea: What if we create a software that can go and rip all this data from facebook. Basically you have someone's account and they have 300-500+ friends. The software will go to each profile and download everything - all wall posts, photos etc. Once its downloaded all the information can now be put in one big folder and used to data mine it. For example, you could do a search for e-mail addresses that have been posted on the walls. Phone numbers that have been posted on the walls. There is a lot of value in these large databases which is only extracted if you have lots of data. The potential for this type of project is huge. The only issue is actually getting access to people's accounts or getting their permission to data mine the profiles. You could also go around and randomly adding people. With every person who adds you basically get access to all the information they have posted SINCE THEY JOINED FACEBOOK. Thoughts?