Twitter (S TWTR) has acquired San Francisco-based video sharing startup SnappyTV, both companies announced Thursday without spilling any beans about the financials of the deal. You may have never heard of SnappyTV, but chances are, you've seen some of its work on Twitter before: SnappyTV has helped Turner to share March Madness clips in near-realtime, and also powered the video cards of numerous other TV networks. With the acquisition, Twitter obviously wants to bolster its own media chops, but the company promised Thursday that SnappyTV customers will continue to be able to share media on Facebook (S FB) and elsewhere as well.