I've just bought this as an investment, wondering what others think of it? It's a £3.5 billion market in the UK with good profit margins, but so far there are no aggregators/portals etc beyond the CPA at http://www.cpa.uk.net/ There may be a good reason for that. I'm guessing not much business is currently done online, but my reasoning is that will change in the long run. Another downside is Google are pushing local results for the term, but I think an authority site could rise above. It would have to be much more than SEO play anyway. I'm going to have a crack at developing a basic aggregator/portal next year, perhaps some sort of bespoke lead gen - enter your requirements and get instant quotes, that sort of thing... Thoughts/criticism welcome!