Do a search for your favorite tag in youtube. If it’s Britney Spears, then youtube will tell you that they’ve got 19,400 plus videos on Britney. I got to the 1000th Britney Spear video by skipping all 999 of them on this search result page.
What happens when you try to go to the 1001st video?
You get the error below:
Guess what? Youtube’s not alone. Flickr does it too. Can anyone guess their limit?