Love 'em or hate 'em, the Web has spawned more than its share of worldwide stars--and as fast as they go viral, these short-lived sensations fade away. We tracked down some of the Internet's biggest overnight sensations to see what they've been up to.

Note: When you purchase something after clicking links in our articles, we may earn a small commission. Read our affiliate link policy for more details.
  
Shop Tech Products at Amazon