Hmm, so all we need to do is figure out what industry is a trillion dollar market. Let's see there's the IRS (the US tax niche) and ... I can't think of anything else.
trillion dollar+ sectors: - oil and gas - banking and investment - defence - autos - travel and tourism (??... i am a bit doubtful)
pharmaceuticals is very big. I dont mean viagra spammers, rather the whole industry. I would place the largest industry in the world as Narcotics, as far as i know, that out does every legal business. A trillion aswell, thats a million, million isn't it, the same amount as every UK households combined debt, so it could be debt related.
This is exactly how I did it. I found a $25B niche that was being tapped by amateurs, and I produced quality content that people linked to. Most importantly, no one else in the Industry knows anything at all about SEO. It's a long term business. I get a little over 100,000 visitors per month, and requests for advertising come in weekly. One thing that really seems to help is that I sincerely report on news - not a blog, not opinions, real news. One secret I''l share: Google seems to identify real news sites from pretend news sites. Done correctly, if you have a news site you'll begin to rank very, very highly, and your news pages won't even need many backlinks to rank highly. One important issue is that you've got to find a way to show people just how popular your site is. Show stats, or even graphs like how this thread was started. OPTIMIZE YOUR HTML - my pages load very fast even on dial-up. Under no circumstances do you use tables within tables, it kills your page speed. I've got a very high ratio of text to HTML, which helps with SEO, visitor experience, page beauty, and lots more. One consequence of having a very popular site is that you can get some strange esoteric Error 500 server errors when many people request the same resource at precisely the exact same moment in time. My SER went up when I trapped Error 500 Server Errors and emailed myself a log so I knew what to fix. Spiders can actually do some strange things, and spiders created Error 500 errors that, after I fixed them, saw my search ranking rise. MSN Bot used to visit pages that didn't exist, and I had to program the page to return a Status 410 (page has permanently gone away, tells bot to stop looking here) to tell the bot for it to stop. In other words, when you stop returning errors to the bots, it helps your SER. Find a niche filled with professionals - people that need a college degree or specialized training - and work to serve the market until you feel that YOU are an expert in that market. My SWAG is that vladid is serving the real estate market. There are a myriad of niches in that field and little good information, which makes it my next frontier...