BoardGameGeek can be a great resource, but it can be a bit hard to figure out where everything is.
First, you can search for games by name, if you know what game you're looking for.
Or you can use the "Browse" feature to find games by category or mechanic.
Once you've found a game, you find yourself on a page that's stuffed full of information , somewhat haphazardly laid out.
At the top, there is the name of the game, a picture, and some basic information on number of players, suggested age range, and so on.
This can be useful to determine if it will work well for your group.
You then see a description of the game, followed by some places it might be for sale, followed by some additional information.
Keep on looking as you go down, you eventually come to the Forums.
Click on the "Reviews" link, and you will see a list of all of the reviews for that game.
Look through these; they tend to be fairly detailed, explaining the mechanics of the game and how they work.
That's not all that BGG has to offer, though.
If you keep looking further down the page, you come to the Statistics section.
This is where statistics about people's ratings and the game's ranking are collected.
One of the links is to "Personal comments.
" This will give you a list of many short comments that people have made on the games, organized by their rating.
I find this invaluable for getting a quick feel of why some people liked the game, and some didn't; I usually try to check out a few of the comments with a 10 rating, a few with a 7 rating, and a few with lower ratings, to get a sense of how different people see the game.
Only a few people leave long, detailed reviews, but there are usually hundreds of people who leave comments.
boardgames.stackexchange.com/users/112/Brian Campbell
BoardGame Review is a blog that provides useful board game reviews.
boardgames.stackexchange.com/users/67/Maniero
BoardGameGeek has lots of user reviews and ratings of board games.
It's a little hard to navigate sometimes, but there's a lot of valuable information there.
boardgames.stackexchange.com/users/32/lilserf
Dice Tower Reviews goes over a mind-boggling variety of games.
They have a great youtube channel worth subscribing too.
I'd also suggest Downtime Town for great, ludicrous, and nuanced reviews - the Scottsman who reviews there is a total nut.
Sadly, hasn't been updated lately.
boardgames.stackexchange.com/users/682/jebyrnes
Board Games with Scott is an excellent review site that provides video reviews of games and attempts to describe whether the game in question is a good match for the type of game you'd like to own.
There are quite a few reviews available, but he isn't necessarily going to cover every single game on the market.
Scott has been reviewing fewer games lately, but the reviews that continue to come out are always of very high quality.
boardgames.stackexchange.com/users/441/Zoot
I write for MTV Geek, Wired GeekDad, and The Geek Collective.
None of the sites are as comprehensive as BGG (in fact, all of my reviews are cross-posted to their linked items list).
You cannot go wrong with BGG
but if you really do want other sites, those are great places to check out!
MTV Geek
The Geek Collective Wired GeekDad
boardgames.stackexchange.com/users/491/Gundabad
There is also a long-running German board game magazine called Spielbox .
As of (I think)
last year, they are also publishing an English version.
I've only received one issue, but it is chalk full of reviews for new games.
The translations can be... interesting, but it is quite readable.
A VERY interesting resource.
boardgames.stackexchange.com/users/201/livingtech
I'm a fan of Ogre Cave .
They're good, down-to earth guys with an active community of commenters.
There's RPG stuff there too, but there's plenty of boardgame reviews too.
boardgames.stackexchange.com/users/612/invisiblejon
It's not really an online resource, but Games Magazine does game reviews, too. (board games, video games, etc.).
Even if you don't pick up the subscription, in the December issue each year they have a 'best games of the year' feature.
boardgames.stackexchange.com/users/143/Joe
Amazon has user reviews for the vast majority of their products, and they also sell board games.
Some of the most well-written reviews I've seen for games has been on their Amazon page.
boardgames.stackexchange.com/users/71/GWLlosa
The best collection of reviews I have seen are on a site called Games from Pevans .
It contains a summary table plus a detailed review.
It seems completely impartial and well written with lots of details and pictures.
boardgames.stackexchange.com/users/2286/Ray Vahey
Before buying a board game, I would like to read some detailed reviews.  It's also hard to tell if the review is just a paid announcement from the publisher.  Is there any website that is " the reference " for those?
Where can I find reviews of board games?
boardgames.stackexchange.com
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boardgames.stackexchange.com/questions/762
boardgames.stackexchange.com/users/23/DavRob60
Try BoardGameGeek, Dice Tower Reviews or Downtime Town. You could also try the magazine Games Magazine for reviews. BoardGameGeek  is a great resource, but it can be a bit hard to figure out where everything is.  BoardGame Review  is a blog with board game reviews and another place to read reviews is Dice Tower: In addition, Downtime Town has great reviews. 
Board Games with Scott  is an excellent review site providing video reviews of games and aims to describe whether the game in question is a good match for the type of game you'd like to have.  There is also a long-running German board game magazine called  Spielbox . Ogre Cave and Pevans are useful sites and not to forget that Amazon has user reviews. Offline Games Magazine also has game reviews.
BoardGameGeek  is a great resource, but it can be a bit hard to figure out where everything is.   BoardGame Review  is a blog with board game reviews and another place to read reviews is Dice Tower.S2: In addition, Downtime Town has great reviews.  Board Games with Scott  is an excellent review site providing video reviews of games and aims to describe whether the game in question is a good match for the type of game you'd like to have.   There is also a long-running German board game magazine called  Spielbox . Ogre Cave and Pevans are useful sites and not to forget that Amazon has user reviews. Offline Games Magazine also has game reviews.