Which social networks do you use regularly on your iPhone and iPad?

Which social networks do you use regularly on your iPad? Which social networks do you use regularly on your iPhone? There are several popular social networks on the web and

Source: http://feedproxy.google.com/~r/TheIphoneBlog/~3/q8WVkCXgB28/story01.htm

world series game 2 world series game 2 libya bay area news lettuce recall lettuce recall zanesville ohio