Searching for Some cool viral content on Internet is very easy when you do it right. I usually follow 3 simple websites to find virals on Internet. The first is Wimp.com, Second is Break.com and the is YouTube. You have to look continuously for better and better viralcontent to post on your Facebook page.
You can also get some really good videos on Facebook pages. All you have to do is to searching!. You can find some serious on CNN Videos, but I suggest you to stay away. Always make sure to stay away from them as they have 100% copyright material.
Perfect Time to Post On Facebook.
The Perfect time to make your content viral is early evenings. Users tend to check a lot of stuff on Monday, Wednesday, Thursday , Friday. Post your content after 5pm IST for Best Reach! :)