Web site listings and referals are the best way. Most of the booking for the summer is done in January and February, at least 6 months in advance for medium to larger weddings, and 2-3 months for the smaller weddings. If you're getting hits on your site, that's a good sign. For the first few jobs, you have to pretty much give it away to get the experience.
Looking at your site, it looks pretty good, but lacking in posed and family photos, which is something brides are really looking for, and that's for both traditional and candid styles. I would see if there's a traveling wedding photography workshop in your area, and take that. After years of full time wedding photography, I still try to take one workshop a year to keep me up to date.
Have a look at how you're pricing your jobs. The two schools of thought are you either shoot it and hand over digital or negatives, and perhaps a set of 4x6 prints, or you keep the images to yourself and upsell prints and wedding albums. The one thing that brides aren't looking for is a set of 40 8x10 prints. I would cruise some other wedding photographers sites and see how they put their packaging together. David Buzzard