Still not sure about the idea of making and sharing six-second looping videos? Consider this: on Friday there were more Vines shared on Twitter than Instagram photos. According to Topsy Analytics, there were about 2.37 million links to vine.co shared on Twitter over a 24-hour period as of about 11:30 pm PT Friday night. That’s well ahead of the 2.14 million links to instagram.com that Topsy counted in the same 24 hours. It’s the first time Vine links have surpassed Instagram links on Twitter. As you can see, Vine almost passed Instagram on Tuesday, June 4th — that’s the day after Twitter released an Android version of Vine. Nick Bilton of the New York Times noticed how close the two were on Thursday. Vine has become an immediate hit on Android. As of late Friday night, it was the No. 5 free app on the Google Play app charts.