I am very interested in all the aspects of the home security industry. I actually owna a home security systems blog too. But I find it that people often get interested by some of the services provided by home security product manufacturers. They are interested in security camera systems, insurance, and alarm systems. Of course using any of these, along with other home security gadgets is often a solution. It all comes down to what you need protection for, from, and at what cost. if you tell me exactly what interests you I can make a more detailed answer.
My home security system = Guns, dogs, flashlights.