What to do with old reviews?
 

I have an old review site that needs a revamp.

A lot of the sites either don't exist or have now been replaced. Ideally I would prefer to start fresh but there is a lot of content on there.

What would you do with all the old reviews, the site is on Wordpress.
If someone searches Google I would like the new review to be shown over the old one but perhaps have an archive of some sort.
I of course don't want the old reviews showing up on the front page and stuff.

Looking for good suggestions.

Personally, I would not discard the reviews (some folks would just delete them). It is already indexed and/or indexable text content. I would consider updating each review with something simple like, "Editor's Note, this site is no longer available. However, click here to see other sites within this same niche" and Link it to a niche tag on the same site. Keeps things relevant and helps update old content to point to new content.

There's other options, of course, but that's one to consider nonetheless.

keep them and update them telling the people how the website have updated since last review

You can leave your old reviews and update them with the new ones.

unique text content is always valuable so just edit them as people above said :)

Never remove content if you can avoid it. Even if the links no longer work, it still brings in traffic to your blog.

this is to the T :thumbsup

Would you be interested in reviewing TrueAmateurModels.com?

I have had the site for over 10 years now and have always updated it every week with new content ....that I exclusively shoot.