What's better for SEO when doing URL site structure? Option 1 bluetomorrow.com/bluetooth-product-reviews/bluetooth-headsets/specific_bluetooth_headset-review.html for each product category, the same structure would be used. or Option 2 bluetomorrow.com/bluetooth-product-reviews/headsets/specific-bluetooth-headset-review.html Would option 1 be considered keyword stuffing in the url? Which is preferred? Any thoughts?
Don't use underscores. Use hyphens. I think they both look a bit spammy... I would go with bluetomorrow.com/bluetooth-product-reviews/headsets/brand1-model1-headset-review.html bluetomorrow.com/bluetooth-product-reviews/headsets/brand1-model2-headset-review.html bluetomorrow.com/bluetooth-product-reviews/headsets/brand2-model1-headset-review.html bluetomorrow.com/bluetooth-product-reviews/headsets/brand2-model1-headset-review.html etc.
I agree with Canonical - however, in our experience, too many hyphens and/or underscores are never a good thing. If you're not too concerned about organization, try throwing everything in the root folder -- or 1 sub-folder. The way you have it (2 hyphenated sub-folders + a hyphenated page URL) is definitely pushing towards the spammy side (aka: 'The Dark Side').