Orkut were other social networking sites including Myspace and Facebook. Ning was a more direct competitor, as it allowed for the creation of social networks similar to Orkut's "communities". An Orkut user was also able to add videos to their profile from either YouTube or Google Video with the additional option of creating either restricted or unrestricted polls for polling a community of users. There was at one point an option to integrate GTalk with Orkut, enabling chat and file sharing. Similar to Facebook, users could also use a "like" button to share interests with friends. Users could also change their
VK 4502 (P) armor on the VK 4501 (P) would not be enough for the tank to remain competitive. It needed to have both more weight and more maneuverability. What initially began as a single vehicle, entitled "Typ 180" grew into a series of five different vehicles, requiring the development of two hull configurations: the Hinten with its turret at the back (as shown in the picture on top) and the Vorne with its turret on the front. Both an electric and a hydraulic drive system, and four different engines. The overall project came to be known as "VK 45.02 (P)." VK 4502