Has Adwords been sucessful for you? Google sent me a free £75 Adwords voucher would my website benfit much from it?
I know a corporate event photographer for whom adwords works beautifully. He gets half his business that way. Me, I'm a wedding photographer and I found it useless. Companies know about the sponsored links and will click on them. Lay people, especially in my case young women searching for wedding photographers, will usually focus on the organic side - that is my experience. So, i'm focusing on developing my organic ranking.
AdWords have worked for my consulting business but have been pretty expensive. I find that some of the business I get is basically break even but compared to other advertising, it appears to be more effective. I think this is only because I can measure it more closely.