What do you think of this strategy?

You mean one site reviewing products from multiple and unrelated niches? that's bad for SEO. It's super difficult to create or rank an authority site unless it's super targeted onto one specific niche.

Thanks everyone. I was just trying to think out of the box is all but yeah you are all very right.

Yes, I have thought about this before. I think that it would be much easier to rank for specific niches than have one big website.

Here is your competition:
TopTenREVIEWS Expert Product Reviews

I would do it differently. I would use different subdomains for each niche. It's not a good idea to stick up completely unrelated niches on a single site...or is it?

First of all, you're getting a lot of opinions on this from people who really have no idea what they are talking about and have never tried anything like it. Throw those opinions out right away.

What you are talking about is trying to create an authority review site. Can it be done, of course it can.

EZA, GoArticles, Squidoo, Hubpages... all cover a wide variety of niches. Nobody complains about them.

About, Amazon, CNET, epinions, ehow, webmd, askmen, yobt (for the adult kids) ect.... seeing a trend here. The BIG sites all cover a lot of niches and topics. Also, all of these sites rank well for a lot of long-tail keywords.

All of the sites mentioned above started out as brand new, no rank, no content sites as well. Time and hard work made them what they are today.

The reason (imho) why so many people have trouble with authority and multi-niche sites is they require more time and effort. It's faster to set up a dumpy squeeze page and call it a day. Don't get sucked into the cheap and easy mindset.

Now, why build an authority site? Well, a single topic/niche site may be easier and faster to get up and running but it's going to hit a ceiling. You're only going to make so-much money with 12-inch-blinds.biz but home-decoration.biz has near endless potential for growth.

If you like to think big and have a big picture vision of what you want to do... go for it. Don't follow the herd.

Having a central site with multiple niches is actually quite easy and can work very well.

You would need to have the main domain have a short description of each niche then create subdomains for each niche under the main. So MyReviewSite.com would be the root where all the different niches are listed and then create subdomains like Cars.MyReviewSite.com and Hats.MyReviewSite.com and Articles.MyReviewSite.com.

The reason to have each niche in a subdomain is the search engines treat subdomains as seperate entities from the main. Each subdomain would be seen as a seperate and unique site in itself and then you can work on your SEO for each subdomain seperately.

Doing this allows you to set up unlimited review sites under a single domain name and it will have no negative effect on SEO. You can work each subdomain into its own authority site and none of the others would have any effect on it.

Edited to add:

If you have a central look and feel for the header of the subdomains that match the main domain, so that they are all tied together in the browser you can actually build the authority of the root domain without even trying to. Having each niche subdomain linking back to the root domain and the root linking in to each subdomain creates a cross linking platform that builds the rank of the root and the rank of the niche subdomain at the same time.

Each subdomain would give the root domain a backlink, raising it's importance in the eyes of the SERPS, and each subdomain gets a backlink from the root domain doing the same thing.

If you are not actually trying the products, don't call it a Review site. Call it a shopping site.


p.s. I do have such a site that I make money from Amazon right after Christmas.