PBS Kids Video (http://pbskids.org/video)

From using the word "Big" instead of "Maximize" to increase the size of the video currently playing, to listing the time of each clip or full episode, PBS creates both a child- and parent-friendly video portal site. Most parents clearly don't want their preschoolers or young grade-school age kids exploring YouTube or other video sites. But the PBS Kids Video site can be easily navigated even by preschoolers (but parents should always sit with kids this age when they're using the computer). One caveat: Once a show is selected, each clip will run consecutively into the next, so if parents aren't paying close attention, a child could easily be sucked into far too much screen time without even noticing.