I want to build niche site but analyze: are niche sites still viable? Map niche site model: SEO timeline, monetization methods, Google updates risk. Calculate: time to build site vs. time to income vs. income potential. Show me the niche site reality: takes 12-24 months, Google update risk. Give me the niche site strategy: build in these niches, monetize like this. Include: whether niche sites still work, how long they take, and what risks exist.