If you are really concerned about your privacy online and posting photos, then you will need to take extra precautions to hide your identity. This is a difficult process because you will need to do it each and every time you access your online account(s). Due to the slowness of anonymous surfing utilities, it is best to create an anonymous persona only for locations of sensitive value and to use your public persona for all others. If you had to rely on anonymous services for 100% of your urban exploring surfing, you would become too frustrated given the slow bandwidth which can result. The best way to hide your online Facebook/Flickr usage is by using TOR. TOR stands for The Onion Router. It works like this: packets leaving your computer are encrypted in layers (like an onion) and sent out to three different servers located around the world. After they stop at each server, a layer is removed from the packet and sent on to the next server. When your packet reaches the final server, it is then forwarded to the actual website you intended it for. The best way to hide your online Facebook/Flickr usage is by using TOR. TOR stands for The Onion Router. It works like this: packets leaving your computer are encrypted in layers (like an onion) and sent out to three different servers located around the world. After they stop at each server, a layer is removed from the packet and sent on to the next server. When your packet reaches the final server, it is then forwarded to the actual website you intended it for. Aside from TOR being too slow for continuous OAP use, you must also realize that each time you use TOR you appear from a different country because the three servers are always different. It might be concluded that you were \\"sharing\\" your account with other people even if you really aren't \\"“ because of the different countries that you're coming in from. TOR is best used for those locations you want to post to external photo-sharing sites that you don't need to ever go back and update again. It can be downloaded from www.torproject.org