Grapes most mentioned on Twitter Sunday

Measured from May 20, 2012 00:00 to 01:40 GMT
1Merlot (107)
2Chardonnay (93)
3Malbec (54)
4PinotNoir (44)
5Riesling (38)
6CabernetSauvignon (31)
7PinotGri (30)
8Shiraz (24)
9Zinfandel (21)
10Syrah (20)
11Tempranillo (12)
12SauvignonBlanc (11)
13Viognier (7)
14Grenache (6)
15CabernetFranc (2)
16Sangiovese (1)
What does it mean? Nothing!