Here’s a viral video created by T-Mobile, UK. It’s a flashmob right smack in Liverpool Street Station — watch them turn the entire station into a dance party! The tagline towards the end fits perfectly with the viral concept.

Also watch the “making of” snippet: http://www.youtube.com/watch?v=PxF8i-T9kcg

Here’s a viral video created by McCann Worldgroup Singapore for GMP, a HR consultancy firm based in Singapore.

The video first appeared online on 21 April 2008, showing what appeared to be CCTV footage of two men being followed out of an office lift by the ghost of an old woman. It has since accumulated more than 650,000 views on YouTube.

Marketing-Interactive reported this last year:

GMP owned up to the ‘ghost video’, 10 days after it first appeared, and released a statement in another video which featured the company’s manager of corporate services, Josh Goh.

The revelation of the ‘ghost video’ as a marketing effort made it newsworthy for Channel 5 and Channel U, and both stations ran stories on the campaign in the news. In the video Goh said that no one should work late, and stress and ill health are common downsides of late nights in the office - and if you are really unlucky, you could even meet a ghost.

“Besides great awareness, there was a lot of traffic to the GMP microsite and the number of CVs uploaded increased exponentially,” Madon said.

Check out the dedicated blog: http://www.rafflesplaceghost.net/blog/

Here’s a viral spoof of the famous Mentos + Coke experiment. This is what happens when you combine Mentos and Carlsberg Beer. See it for yourself.

This video is “old news”, but gained over 2 million views, and 500+ blog posts since July 2007. See more stats via Video Viral Chart