The videos offer there are great and entertaining. But be aware though, DO NOT download software they offer for speeding up your video streaming which found containing dangerous viruses & trojans, so stay cautious, aware where you click!
Say it simple, Tudou is just a Chinese version of Youtube, and in some aspects even better e.g. higher resolution on videos, bigger screen etc.
Tudou is safe, family friendly, and in general a great place to post your vids on practically anything!