There is the possibility to add videos! Adding and editing videos can be found at "My account" -> "Videos" tab.
A few remarks
1/ Videos appear only after being converted into a format which can be played in an internet browser - the conversion may take up to a few dozen minutes.
2/ Requirements concerning the type of file - avi, wmv, mpeg, or flv, the minimum duration is 10 seconds and the maximum is 3600 seconds.
3/ Videos can be liked and commented just like photos.