To find wine events in your area, take a look at LocalWineEvents.com. It's a calendar of food and drink events all over the world. There are quite a few events listed in my own area, so I know this is a site that event planners actually use.
Events listed include wine tastings, wine dinners, and cooking classes. LocalWineEvents.com even includes events that don't have anything to do with wine--e.g., beer festivals, homebrew competitions, and single malt scotch tastings.
I started to subscribe to LocalWineEvents.com's free, weekly newsletter that contains information about upcoming events in my area plus articles wine-oriented articles. Doing so, however, would require me to send them registration information about myself via a non-secure site. I think I'll stick with checking their calendar occasionally.