It was a moving photo like countless others on Facebook, but the caption "four more years" said it all -- US President Barack Obama had won re-election, and was about to make social media history.
After a months-long, gruelling presidential campaign fought both off- and online, Obama sealed his tech-savvy reputation late Tuesday by announcing his victory over Republican foe Mitt Romney on Twitter and Facebook with the photo.
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| Screenshot of Barack Obama fanpage's photo. It has over 3 million likes as of November 8. |
By early Wednesday, the shot of a smiling Obama holding his wife Michelle in a loving embrace had already broken records on both social networks -- bringing to a climax a hard-fought online campaign for supporters and votes.
"This Barack Obama photo is the most-liked Facebook photo of all time," the social network announced Wednesday, as it clocked up more than 3.5 million "likes".