It seems google has pulled the link webmasters used to view their cache from their search results page. I am not sure if this is part of Google’s continous testing or if it is going to be a permanent change.
In the meantime, using this query will allow you to be able to access your webcache. I am sure there are tools that can do it, but I haven’t had the time to look for any
http://webcache.googleusercontent.com/search?q=cache:http://www.tolumi.com/
Just replace tolumi.com with your desired url and it should work 
.
Update…
Turns out the cache link was not retired as we initially feared, Google just moved it to the preview pane as you can see below.
It must have been under construction or something… Just now it looks like that:
On google.com they added kind of website preview plus the cache info – http://imageshack.us/f/841/googlegp.jpg/ – it pops out in the area where you usually find ads.
However on google.pl and google.co.uk, I still see old layout – http://imageshack.us/f/841/googlegp.jpg/
What’s interesting there is no adverts as well.
Cheers,
Pawel
Oops. Sorry, that’s the second link – http://imageshack.us/f/23/googlecouk.jpg/