The Wirecutter
I started following this site before it was shrewdly acquired by the New York Times. (See my blog on "Is There Life After Print" for a take on their strategy.) You get recommendations on the best products in any category. Subject matter experts write the reviews and recommendations. You'll see a top recommendation, an upscale option, a cheap option. Supporting documentation follows. Reviews are updated regularly. The categories are endless. Try stumping the search engine with a product category. Personally I've used The Wirecutter for advising me on purchases ranging from water bottles to Bluetooth headsets (their cheap option choice was perfect!) to bicycles, shower curtains, fans, mechanical pencil, and tablet. I get absolutely nothing for sending you their way except knowing I did you a favor. You're welcome.