There is a web site that I go to quite often called
www.mtbr.com. This is a mountain bike review site but it has a very good layout that I think could be followed here.
Products are sorted by type (drill, table saw, router, etc.) Within that you can sort by rating or price, etc.
Many of these reviews are by young people and most do their best to give an honest opinion. I believe the concerns regarding mature use of the review are unfounded. There is always an idiot or two, but that's what makes life interesting.
When giving a review it would be nice to have multiple elements to fill in. Somthing like:
Product Type:
Duration of Use:
Where Purchased:
Price:
Strengths:
Weaknesses:
Overal Rating: 1-10