Find places that want local views hanging on their walls - galleries, doctors, forestry commission venues etc. Offer a commission for any print sales - but the prints must be top quality in really nice frames at a 'sensible' price. Put up a variety of subject matter and see which sell best - I was amazed how many B&W prints I sold at my recent exhibition!
I've done a few exhibitions now and am starting to get a grasp of what people buy - it's not necessarily a fantastic shot that sells, it seems to be either pastel coloured views that look nice on anyone's wall, a good photo of somewhere the client has had a good time (Durdle Door always sells well) and high contrast B&W.
I do sell through my website but not that often - I use it as a shop window. I also got some cards printed at Moo.com and hand these out when out and about if anyone talks to me while shooting - they have 25 different images randomly on the back so people can take home a mini version (I often get asked who I shoot for when at NT properties etc) and hopefully, they then buy online.
My best advice though? Make sure everything looks professional and just get in people's faces - galleries etc I mean, talk to them, take some prints in, tell them how nice they would make their venue look etc. Basically, sell yourself but don't sell yourself short
Cheers
Andy